1c Green, Coil (410). Tied by “Chicago Ill. Apr. 17, 1912 7-00 PM” machine cancel on illustrated postcard depicting Chicago, addressed to College Hill O., minor corner bends, Very Fine, the earliest documented use of Scott 410, ex Berkun, with 2000 A.P.S. certificate

Robert Siegel Auction Galleries, Feb 2015, Sale 1093, Lot 259

1912, 2¢ carmine, Brinkerhoff type II perfs (Scott 409), guide line pair, o.g., never hinged, Very Fine and choice, with 2014 P.F. certificate. Scott $155 for hinged. Estimate value $100 – 150.

Daniel Kelleher Auctions, Aug 2015, Sale 672, Lot 2713

1912, 1¢ green, Farwell group 4 perfs, wide spacing & narrow spacing (Scott 408), horizontal guide line block of 4 with right sheet margin, top pair 4B4, bottom 4A4, o.g., top pair lightly hinged, bottom never hinged, post office fresh, Extremely Fine, an exceedingly rare mixed perforation multiple, with 2014 P.F. certificate. Estimate value $500 – 750.

Daniel Kelleher Auctions, Aug 2015, Sale 672, Lot 2712

1914, 7¢ black (Scott 407), o.g., never hinged, desirable high quality example with extremely large margins, Very Fine to Extremely Fine. Scott $160. Estimate price $150 – 200.

Daniel Kelleher Auctions, Dec 2012, Sale 633, Lot 712

Scott 407, 1914 7c Black, top margin single, all but perfectly centered within large margins, crisp prooflike impression on crisp white paper, unblemished o.g., NH, quite desirable; 2004 PSE graded XF-Sup 95 certificate (SMQ $775)

H.R. Harmer, May 2014, Sale 3005, Lot 1269

USA (Scott 407) 1914 WASHINGTON 7¢ BLACK, PLATE SINGLE Choice top plate #6919 single, fresh, MINT never hinged, extremely fine. Cat price $160.

Regency-Superior, Aug 2015, Sale 112, Lot 806

2c Lake (406c). Intense color in the true Lake shade, bright paper, wavy-line machine cancel VERY FINE AND CHOICE. THIS IS THE ONLY CERTIFIED USED EXAMPLE OF THE 1912 2-CENT IN THE LAKE SHADE. A GREAT RARITY OF THE ISSUE. Through an error at the Bureau of Engraving and Printing, a small quantity of this stamp was erroneously printed using the inks in use at the time for the Postage Due issues. The Philatelic Foundation has certified approximately a dozen unused copies, and this sole used example. With 2003 P.F. and P.S.E. certificates. Scott Catalogue value for used is only slightly higher than that for unused, despite its far greater rarity.

Robert Siegel Auction Galleries, Sep 2012, Sale 1028, Lot 373

1912, 2¢ lake (406c), strong true color, bright fresh paper. Full original gum with a small hinge remnant. Fine. Scott value $2,000 A FRESH SOUND EXAMPLE OF THIS TRULY RARE SHADE WITH LESS THAN A DOZEN CERTIFIED BY THE PHILATELIC FOUNDATION. Expertization: 1992 P.F. Certificate.

Matthew Bennett International, Feb 2015, Sale 351, Lot 182

1c Green, Booklet Panes of Six (Scott 405b). Position D, eleven of the 15 total plates, about half with h.r., range of centering with a couple nicer, Very Good-Very Fine

Robert Siegel Auction Galleries, Jun 2010, Sale 991, Lot 1203

o 1912, 1¢ green, double impression (405c), well centered, strong doubling producing a very dark shade. Small thin spot. Choice Very Fine appearance. Scott price $6,000 THIS IS THE ONLY CERTIFIED EXAMPLE OF THE 1¢ 1912 PERF 12, MINT OR USED TO BE CERTIFIED BY THE PHILATELIC FOUNDATION AS A DOUBLE IMPRESSION, WE HAVE SEEN NO OTHERS. Expertization: 1988 P.F. Certificate. Provenance: Natalee Grace.

Matthew Bennett International, Feb 2015, Sale 351, Lot 181

1915, 10¢ Panama-Pacific, perf. 10 (404), block of four, deep rich color, original gum, bottom stamps never hinged (tiny gum skip lower right), upper right very lightly hinged, small perf dimple lower left, fresh and F.-V.F. Scott $5,000

Matthew Bennett International, Mar 2011, Sale 337, Lot 2882

10c Panama-Pacific, Perf 10 (Scott 404). Wide margins and exceptionally choice centering (thus the “XQ” grade), lightly hinged with intense color, Extremely Fine, with 2011 P.F. certificate (XF 90XQ)

Robert Siegel Auction Galleries, Oct 2011, Sale 1014, Lot 1889

10c Panama-Pacific, Perf 10 (404). Block of four, top left stamp lightly hinged, other three Mint N.H., gorgeous color and wide margins, Very Fine and choice block, the bottom left stamp is Extremely Fine, Scott Retail as singles

Robert Siegel Auction Galleries, Jun 2012, Sale 1025, Lot 221

10c Panama-Pacific, Perf 10 (Scott 404). Single small hinge mark, intense shade and impression, choice centering with well-balanced margins, Extremely Fine, with 2003 P.S.E. certificate (OG, XF 90, SMQ value $875.00)

Robert Siegel Auction Galleries, Nov 2012, Sale 1034, Lot 380

1915, 10¢ Panama-Pacific, perf 10 (404), o.g., hinge remnant, nicely centered example, brilliant color; reperforated at top and right, otherwise Very Fine. Scott $725. Estimate price $250 – 350.

Daniel Kelleher Auctions, Sep 2013, Sale 639, Lot 3512

Scott #404, 10c Panama-Pacific, perf. 10, very well centered within large margins, vibrant color, o.g., n.h., extremely fine.

Spink Shreves Galleries, Jan 2014, Sale 146, Lot 402

404, 1915 10c Pan-Pacific, Perf 10,bright and fresh with excellent centering, NH, light natural diagonal gum bend (not mentioned on cert), Extremely Fine, photocopy of 2013 PSE certificate (Scott price $1,700)

H.R. Harmer, May 2014, Sale 3005, Lot 1265

10c Panama-Pacific, Perf 10 (Scott 404). Mint N.H., with wide right selvage, brilliant color, Very Fine, with 2005 P.S.E. certificate

Robert Siegel Auction Galleries, Sep 2014, Sale 1078, Lot 507

10c Panama-Pacific, Perf 10 (404). Lightly hinged, perfectly centered within wide margins, brilliant color EXTREMELY FINE GEM. A SUPERB STAMP WHICH HAS BEEN GRADED GEM 100 BY P.S.E. With 2002 P.F. and 2014 P.S.E. certificates (OGph, Gem 100; SMQ $2,850.00). This is the highest grade P.S.E. has assigned to Scott. 404; two others share this grade

Robert Siegel Auction Galleries, Dec 2014, Sale 1090, Lot 1495

1915, 10¢ Panama-Pacific, perf 10 (Scott 404), o.g., very lightly hinged, brilliant color, choice example of this popular stamp, Fine. Scott $700. Estimate price $250 – 350.

Daniel Kelleher Auctions, May 2015, Sale 669, Lot 2984

USA (Scott 404) 1915 PANAMA-PACIFIC 10¢ ORANGE PERF 10 Black postmark, large margins, very fine to extremely fine. Cat $75.

Regency-Superior, Aug 2015, Sale 112, Lot 805

United States 1910-30 Issues 1915 5c blue, perf.10, block of four, n.h., fine (catalogue value for singles)

Cherrystone Auctions, Jun 2011, Sale 201106, Lot 71

1915, 5¢ Panama-Pacific, perf 10 (Scott 403), wide margins, fresh and attractive, o.g., never hinged, Very Fine to Extremely Fine, 2001 PF Cert. Scott $390. Estimate value $300 – 400. (Image 1)

Daniel Kelleher Auctions, Jun 2012, Sale 630, Lot 1829

Scott #403, 5c Panama-Pacific, perf. 10, wonderfully well centered and margined, lovely rich color on a bright white paper, o.g., n.h., extremely fine; 2012 PSE certificate (XF 90; SMQ value $850.00).

Spink Shreves Galleries, Nov 2012, Sale 141, Lot 162

United States 1910-30 Issues 1915 5c blue, n.h., jumbo margins all around, fresh and v.f., with 1999 PFC

Cherrystone Auctions, Jul 2013, Sale 201307, Lot 133

5c Panama-Pacific, Perf 10 (Scott 403). Lightly hinged, radiant color on crisp paper, beautiful centering with wide margins, Extremely Fine Gem, with 2006 P.F. certificate (XF-Superb 95)

Robert Siegel Auction Galleries, Mar 2014, Sale 1067, Lot 1489

USA (Scott 403) 1915 PANAMA-PACIFIC 5? BLUE PERF 10 True premium stamp. Deep, rich color and nearly perfectly centered within luxurious margins. Original gum, extremely lightly hinged in upper left corner only. Cat value $160.

Regency-Superior, Nov 2014, Sale 108, Lot 802

U.S.; General Issues, 1915, 5¢ Panama-Pacific, Perf 10, #403, n.h., sharp impression, Extremely Fine, PF (1979) cert. Scott $390. Estimate value $160-200.

Harmer-Schau Auction Galleries, Aug 2015, Sale 106, Lot 1800

1915, 2¢ Panama-Pacific, perf 10 (Scott 402), bottom plate block of 6, o.g., never hinged, attractive example of this tough plate showing wide selvage, impressive rich shade; bottom right stamp with gum skip, light vertical crease at bottom center selvage does not affect any of the stamps, Fine. Scott $1,000 Estimate price $1,000 – 1,500.

Daniel Kelleher Auctions, Apr 2012, Sale 629, Lot 327

**    2¢ Panama-Pacific, perf 10 (Scott 402), virtually perfectly centered, lovely powdery shade, fresh never hinged original gum, Extremely Fine, SMQ price $825 (photo). $170 Expertization: 1997 P.F. and 2008 P.S.E. Certificates, the latter graded XF-Sup 95.

Matthew Bennett International, May 2014, Sale 350, Lot 557

USA (Scott 402) 1915 PANAMA-PACIFIC 2¢ CARMINE (PSE GRADED 90) Fresh, MINT never hinged, extremely fine. (2013 PSE Graded Cert #01272046, XF 90, Mint OGnh) (SMQ price $350)

Regency-Superior, Aug 2015, Sale 112, Lot 803

1914, 1¢ Panama-Pacific, perf 10 (401), block of 28, o.g., never hinged, natural straight edge at left, trivial natural gum skip on position 3; a gorgeous multiple that would yield several excellent singles in broken up; a tremendous showpiece that will surely elicit serious dealer bids, Fine to Very Fine. Scott $1,680 for singles. Estimate value $750 – 1,000.

Daniel Kelleher Auctions, Dec 2013, Sale 640, Lot 361

United States 1913-15 Panama-Pacific Exposition 1914 Perf.10, 1c green, right margin plate number block of six, l.h., well centered, fine-v.f.

Cherrystone Auctions, Jul 2015, Sale 201507, Lot 2148

10c Orange, Panama-Pacific (Scott 400A). Mint N.H. with selvage at bottom, vivid color, Very Fine, with 2010 P.S.E. certificate

Robert Siegel Auction Galleries, Mar 2011, Sale 1007, Lot 2695

10c Orange, Panama-Pacific (Scott 400A). Mint N.H., vibrant color as fresh as the day it was printed, beautiful centering with wide and balanced margins EXTREMELY FINE GEM. A SUPERB MINT NEVER-HINGED EXAMPLE OF THE 10-CENT ORANGE PERF 12 PANAMA-PACIFIC ISSUE. With 2009 P.S.E. certificate (Superb 98, SMQ price $5,250.00). Only three have graded higher to date

Robert Siegel Auction Galleries, Oct 2011, Sale 1014, Lot 1868

10c Orange, Panama-Pacific (Scott 400A). Mint N.H., deep rich color and proof-like impression on bright paper, perfect centering with wide and balanced margins, long and full perforations EXTREMELY FINE GEM. A SUPERB MINT NEVER-HINGED EXAMPLE OF THE 10-CENT ORANGE PERF 12 PANAMA-PACIFIC ISSUE, WHICH HAS BEEN GRADED SUPERB 98 BY P.S.E. With 2010 P.S.E. certificate (Superb 98, SMQ value $5,200.00). Only three have graded higher to date.

Robert Siegel Auction Galleries, Mar 2012, Sale 1019, Lot 780

1913, 10¢ orange Panama-Pacific (400A), nearly perfectly centered with beautifully balanced margins, truly vivid color and pristine, never hinged original gum; fresh and choice, Extremely Fine. Scott value $400 Expertization: 2003 PF Certificate. Provenance: Enstrom.

Matthew Bennett International, Sep 2012, Sale 346, Lot 825

400A, 1913 10c Panama Pacific,P.O. fresh, NH, Fine (Scott price $400)

H.R. Harmer, Jun 2013, Sale 3003, Lot 1286

**    10¢ orange Panama-Pacific (Scott 400A), virtually perfect centering within lavishly large margins, stunning deep color, a beautiful stamp, original gum, never hinged, Superb (photo). $400

Matthew Bennett International, May 2014, Sale 350, Lot 555

10c Orange, Panama-Pacific (Scott 400A). Mint N.H. right plate no. 6139 block of six, intense shade and proof-like impression VERY FINE. A RARE MINT NEVER-HINGED PLATE BLOCK OF THE 10-CENT ORANGE PERF 10 PANAMA-PACIFIC ISSUE. The last Mint N.H. plate block we offered was in our 2009 MLG sale. We have offered approximately a half dozen since keeping computerized records, and this is the first from plate 6139.

Robert Siegel Auction Galleries, Feb 2015, Sale 1092, Lot 1302

1913, 10¢ orange Panama-Pacific (Scott 400A), o.g., lightly hinged, immense JUMBO margins, an incredible example with mouthwatering color, Extremely Fine, with 1983 P.F. certificate. Scott $180. Estimate value $250 – 350.

Daniel Kelleher Auctions, Aug 2015, Sale 672, Lot 2708

U.S.; General Issues, 1913, 10¢ Orange Yellow Panama-Pacific Perf 12, #400. N.h., lovely piece, grade 90 Very Fine to Extremely Fine, PSE (2011) cert. Scott Stamp Values $475. Estimate $600-650.

Harmer-Schau Auction Galleries, Feb 2012, Sale 92, Lot 1134

10c Orange Yellow, Panama-Pacific (Scott 400). Mint N.H., vibrant color, Jumbo margins and almost mathematically precise centering, tiny natural inclusion not mentioned on accompanying certificates EXTREMELY FINE GEM. A SUPERB MINT NEVER-HINGED EXAMPLE OF THE 10-CENT ORANGE YELLOW PERF 12 PANAMA-PACIFIC ISSUE. Ex Whitman. With 1997 P.F. and 2009 P.S.E. certificates (Superb 98 Jumbo, unpriced in SMQ above the grade of 98, SMQ $2,450.00 as 98). Only one example has been graded higher (at 100) and only three others share this grade

Robert Siegel Auction Galleries, Nov 2012, Sale 1034, Lot 373

1913, 10¢ orange yellow Panama-Pacific (400), right plate block of 6, o.g., never hinged, extraordinary premium quality example with super wide side selvage, with striking rich color, a most impressive showpiece, Fine to Very Fine, 2006 P.F. certificate. Scott $3,850. Estimate $2,500 – 3,500.

Daniel Kelleher Auctions, Sep 2013, Sale 639, Lot 3517

Scott #400, 10c Panama-Pacific, orange yellow, especially well centered and margined, brilliant color and a strong detailed impression, o.g., lightly hinged, extremely fine; 2014 PSE certificate (XF-Superb 95; SMQ price $315.00).

Spink Shreves Galleries, May 2014, Sale 148, Lot 289

10c Orange Yellow, Panama-Pacific (Scott 400). Bottom plate no. 6135 block of six, four stamps Mint N.H., two lightly hinged, vibrant color, nice centering with wide margins, Very Fine

Robert Siegel Auction Galleries, Feb 2015, Sale 1093, Lot 240

U.S.; General Issues, 1913, 10¢ Orange Yellow Panama-Pacific, Perf 12, Plate Block of 6, #400, n.h., very large top #6139, Fine to Very Fine. Scott $3,850. Estimate price $1,000-1,200.

Harmer-Schau Auction Galleries, Aug 2015, Sale 106, Lot 1796

5c Panama-Pacific (Scott 399). Lightly hinged, wide margins and essentially perfect centering, Extremely Fine Gem, with 2006 P.S.E. certificate (OGph, Superb 98, SMQ value $350.00)

Robert Siegel Auction Galleries, Mar 2012, Sale 1019, Lot 779

1913, 5¢ Panama-Pacific (Scott 399), impressive example with deep rich color, right margin single with plate number 6138, o.g., never hinged, Extremely Fine, 2012 P.S.E. certificate graded XF-90. SMQ $360. Scott $160. Estimate price $200 – 300.

Daniel Kelleher Auctions, Oct 2012, Sale 632, Lot 1321

Scott 399, 1915 5c Panama Pacific, ,bright color, well centered within wide margins, NH, 2012 PSE Graded “XF 90” Certificate (SMQ price $360)

H.R. Harmer, Jun 2013, Sale 3003, Lot 1283