Offices in China, 1922, 2¢ on 1¢ green (K17), left plate number block of six, slightly disturbed original gum, selvage somewhat reduced, Fine. Scott $850

Matthew Bennett International, Sep 2010, Sale 333, Lot 3992

U.S.; Offices in China Issues, 1919, $2 on $1 Violet Brown, #K16. O.g. (h.r.), Fine to Very Fine. Scott $450. Estimate $150-180.

Harmer-Schau Auction Galleries, Feb 2010, Sale 84, Lot 1807

U.S.; Offices in China Issues, 1919, $1 on 50¢ Light Violet, #K15. Dist. o.g., Fine. Scott $575. Estimate value $100-120.

Harmer-Schau Auction Galleries, Jul 2010, Sale 86, Lot 655

60c on 30c Offices in China (Scott K14). Right plate no. 6921 block of six, slightly disturbed original gum, vibrant color, few natural gum wrinkles, Fine

Robert Siegel Auction Galleries, Jun 2009, Sale 975, Lot 2222

40c on 20c Offices in China (Scott K13). Mint N.H., attractive margins and centering, fresh, bright color, Very Fine and choice, with 2009 P.S.E. certificate (VF-XF 85, SMQ price $365.00)

Robert Siegel Auction Galleries, Apr 2010, Sale 984, Lot 1145

U.S.; Offices in China Issues, 1919, 30¢ on 15¢ Gray, #K12. N.h., Very Fine, PF (1991) cert. Scott $210. Estimate value $100-120.

Harmer-Schau Auction Galleries, Jul 2010, Sale 86, Lot 654

24c on 12c Offices in China (Scott K11). Top plate no. 6934 block of six, intense color on bright paper, Fine-Very Fine,

Robert Siegel Auction Galleries, Oct 2010, Sale 997, Lot 6242

18c on 9c Offices in China (Scott K9). Mint N.H., essentially perfectly centered, bright and crisp, Extremely Fine, with 2004 P.F. certificate

Robert Siegel Auction Galleries, Dec 2008, Sale 967, Lot 5137

16c on 8c Offices in China (Scott K8). Mint N.H., choice margins and exceptionally well-centered, bright and crisp, Extremely Fine, with 2009 P.S.E. certificate (XF 90, SMQ $345.00)

Robert Siegel Auction Galleries, Dec 2009, Sale 982, Lot 6121

14c on 7c Offices in China (Scott K7). Mint N.H., choice margins and centering, intense color on crisp white paper, Extremely Fine Gem, difficult to find in this high quality, with 2008 P.S.E. certificate (XF-Superb 95, SMQ $1,500.00)

Robert Siegel Auction Galleries, Sep 2008, Sale 962, Lot 3017

10c on 5c Offices in China (Scott K5). Mint N.H., choice margins and mathematically centered, strong color on crisp paper, Extremely Fine Gem, with 2009 P.S.E. certificate (Superb 98, SMQ value $2,500.00), one of only four to have been awarded this grade with only one higher

Robert Siegel Auction Galleries, Apr 2010, Sale 984, Lot 1139

8c on 4c Offices in China (Scott K4). Jumbo margins, sharp color on bright paper, barely hinged, Extremely Fine Gem, with 2009 P.S.E. certificate (OGph, XF-Superb 95 Jumbo, SMQ price $155.00 as 95, $260.00 as 98)

Robert Siegel Auction Galleries, Apr 2010, Sale 984, Lot 1138

UNITED STATES Offices in China 1919 6c on 3c violet, right margin plate no. block of 20, bright color, n.h. and post office fresh, fine

Cherrystone Auctions, Sep 2008, Sale 200809, Lot 74

Offices in China, 1919, 4¢ on 2¢ rose (Scott K2), scarce 2nd printing, right margin plate number single, o.g., never hinged, attractive and pristine Post Office fresh stamp, Very Fine, only 50,000 printed. Scott $70. Estimate price $75 – 100.

Daniel Kelleher Auctions, Aug 2012, Sale 631, Lot 1713

$7.50 1985 Hunting Permit (Scott RW52). Mint N.H., unusual color shift causing impression of second duck, Very Fine, unusual variety

Robert Siegel Auction Galleries, Sep 2009, Sale 976, Lot 2379

RW44, 1977 $3 Ross’ Geese, matched set plate no 173205 blocks of four, NH, F-VF (Scott value $260)

H.R. Harmer, Jun 2015, Sale 3007, Lot 3609

UNITED STATES Duck Hunting 1967 Old Squaw Ducks, $3 multicolored, bottom right margin plate no. block of four, n.h. and post office fresh, v.f.

Cherrystone Auctions, Jun 2010, Sale 201006, Lot 56

UNITED STATES Duck Hunting 1966 Whistling Swans, $3 multicolored, top right margin plate no. block of four, n.h. and post office fresh, v.f.

Cherrystone Auctions, Jun 2010, Sale 201006, Lot 55

U.S.; Hunting Permit, 1963, $3 Brants, Plate Block of 4, #RW30. N.h., slight offset on gum, Fine to Very Fine. Scott $500. Estimate $140-160.

Harmer-Schau Auction Galleries, Aug 2011, Sale 90, Lot 2067

$3.00 1961 Hunting Permit (Scott RW28). Mint N.H., mathematically perfect centering, Extremely Fine Gem, with 2007 P.S.E. certificate (Gem 100, SMQ value $640.00), this is the highest grade awarded to date and only eight others share this grade

Robert Siegel Auction Galleries, Apr 2010, Sale 984, Lot 1238

Hunting Permit, 1958, $2 Canada Geese (RW25), top right plate block of six, sharp impression, bright and fresh, original gum, never hinged, Very Fine. Scott value $575

Matthew Bennett International, Dec 2008, Sale 330, Lot 2082

$2.00 1955 Hunting Permit (Scott RW22). Mint N.H., Extremely Fine Gem, with 2008 P.S.E. certificate (Superb 98, SMQ $390.00)

Robert Siegel Auction Galleries, Dec 2008, Sale 967, Lot 5362

UNITED STATES Duck Hunting 1948 Buffleheads in Flight, top right margin plate no. block of six, n.h. and post office fresh, natural gum bends and skips, v.f.

Cherrystone Auctions, Jun 2009, Sale 200906, Lot 417

$1.00 1941 Hunting Permit (Scott RW8). Mint N.H. with wide top plate no. 146282, gorgeous margins and centering, Extremely Fine

Robert Siegel Auction Galleries, Sep 2008, Sale 962, Lot 3071

Hunting Permit, 1938, $1 Pintail Drakes (RW5), full upper left margin plate no. F138602 block of 6, nicely centered, negligible selvage strengthening, o.g., NH, F-VF. Scott $4,250

Matthew Bennett International, Dec 2007, Sale 325, Lot 2707

Hunting Permit, 1936, $1 Canada Geese (RW3), plate block of 6, top left plate number block of six, deep rich color with a sharp impression, couple usual light gum bends and skips, original gum, stamps never hinged, top selvage with hinge remnants, F.-V.F. Scott value $4,000

Matthew Bennett International, Dec 2008, Sale 330, Lot 2039

$1.00 1934 Hunting Permit (Scott RW1). Mint N.H., choice margins, fresh and bright, natural gum creases not mentioned on accompanying certificate, Very Fine, with 2004 P.F. certificate

Robert Siegel Auction Galleries, Dec 2008, Sale 967, Lot 5351

15c Orange, Special Delivery (Scott E16). Gorgeous margins and precise centering, vivid color with neat grid cancel, Extremely Fine Gem, with 2009 P.S.E. certificate (Superb 98, SMQ unpriced for used, Mint N.H. for this grade is 190 times the .70 catalog value)

Robert Siegel Auction Galleries, Jun 2009, Sale 975, Lot 2175

10c Pale Ultramarine, Special Delivery (Scott E10). Jumbo margins, fresh, bright pastel color, Extremely Fine, with 1989 P.F. and 2008 P.S.E. certificates (OGph, XF 90 Jumbo, SMQ $380.00 as 90, $630.00 as 95)

Robert Siegel Auction Galleries, Jun 2009, Sale 975, Lot 2167

10c Ultramarine (Scott E9). Block of four, three lightly hinged, bottom left Mint N.H., Very Fine and choice

Robert Siegel Auction Galleries, Oct 2010, Sale 997, Lot 6210

10c Ultramarine, Special Delivery (Scott E8). Mint N.H. with plate no. 5860 at top with wide selvage, rich color on bright paper, extra wide margins, Extremely Fine Gem, with 2005 P.F. certificate

Robert Siegel Auction Galleries, Sep 2009, Sale 976, Lot 2266

10c Green, Special Delivery (Scott E7). Mint N.H. top imprint and plate no. 4917 block of six with wide selvage, rich color, light natural gum crease, Fine

Robert Siegel Auction Galleries, Apr 2009, Sale 971, Lot 1993

10c Ultramarine, Special Delivery (Scott E6). Mint N.H., with top plate no. 5243-09 and small part of imprint, well-centered with bright color, Very Fine and choice, the “09” was added to identify the 1909 printing for stamp collectors, with 1998 P.F. certificate

Robert Siegel Auction Galleries, Jun 2009, Sale 975, Lot 2151

10c Blue, Special Delivery (Scott E5). Deep rich color and proof-like impression, beautiful centering with wide and balanced margins, unobtrusive cancel leaves entire design clearly visible, Extremely Fine Gem, with 2009 P.S.E. certificate (Superb 98, SMQ value $330.00), this is the highest grade awarded to date and the only example to achieve this grade

Robert Siegel Auction Galleries, Jun 2009, Sale 975, Lot 2147

10c Blue, Special Delivery (Scott E5). Plate no. 381 at bottom, tied by “Waltham Mass. Mar. 26, 1898” duplex cancels on 2c entire to Cambridge Mass., various backstamps incl. “Boston & Somerville R.P.O. Mar. 25, 1898”, Hub Stamp Co. return address, few slightly soiled perfs from gum, Very Fine, scarce

Robert Siegel Auction Galleries, Dec 2009, Sale 977, Lot 626

10c Blue, Special Delivery (Scott E4). Original gum, rich color, tiny perf flaw at left, appears Very Fine

Robert Siegel Auction Galleries, Sep 2008, Sale 962, Lot 2978

10c Dark Blue, Special Delivery (E4 var). Top imprint and plate no. 77 block of six, original gum, lightly hinged, intense shade and impression, tiny toned spot in center selvage not mentioned on accompanying certificate FINE. AN EXCEEDINGLY RARE IMPRINT AND PLATE NUMBER BLOCK OF SIX OF THE 10-CENT 1894 UNWATERMARKED BUREAU SPECIAL DELIVERY ISSUE. VERY FEW PLATE BLOCKS ARE KNOWN, ESPECIALLY FROM THE DESIRABLE TOP PLATE POSITION. ESPECIALLY DESIRABLE IN THE DARK BLUE SHADE. Only one plate number was used for this issue — Plate 77. Our search of past auction catalogues and Power Search found only four others: 1) bottom position, centered to top right, offered in our 1999 Rarities sale, 2) bottom position, negligible natural gum wrinkles and some perf strengthening, ex Todd (Part One, lot 1090), 3) wide top position, rejoined perf separations between stamps in left vertical pair, offered in our 1966 Rarities, Todd (Part One, lot 1088) and the Wampler sale, and 4) wide top, minor perf strengthening, trivial red offset on back, bottom left corner perf off, ex Todd (Part One, lot 1089). With 1979 P.F. certificate

Robert Siegel Auction Galleries, Dec 2009, Sale 977, Lot 605

10c Orange, Special Delivery (Scott E3). Mint N.H., exceptionally well-centered, rich color EXTREMELY FINE GEM. A DESIRABLE MINT NEVER-HINGED EXAMPLE OF THE 1893 “COLUMBIAN” ISSUE SPECIAL DELIVERY. With 2009 P.S.E. certificate (XF-Superb 95, SMQ $3,700.00)

Robert Siegel Auction Galleries, Jun 2009, Sale 975, Lot 2139

10c Blue, Special Delivery (Scott E2). Mint N.H., exceptionally wide margins and nearly perfectly centered, vivid color on post office fresh paper EXTREMELY FINE GEM. A MARVELOUS MINT NEVER-HINGED EXAMPLE OF THE SECOND SPECIAL DELIVERY ISSUE OF 1888. GRADED XF-SUPERB 95 BY P.S.E.–THIS IS THE HIGHEST GRADE AWARDED TO DATE P.S.E. encapsulated (XF-Superb 95, SMQ price $10,400.00).This is the highest grade awarded to date in the P.S.E. Population Report and only three others share this grade.

Robert Siegel Auction Galleries, Dec 2009, Sale 978, Lot 1117

10c Blue, Special Delivery (Scott E1). Mint N.H., rich color, Very Fine and choice, with 2001 P.F. certificate

Robert Siegel Auction Galleries, Apr 2009, Sale 972, Lot 3395

U.S., Airmail, 1933, 50¢ “Chicago” Zeppelin, #C18. N.h., Very Fine. Scott $100. Estimate price $50.

Harmer-Schau Auction Galleries, Oct 2008, Sale 79, Lot 280

50c Chicago Zeppelin (Scott C18). Bottom plate no. 21177 block of six, lightly hinged, bright shade, usual natural gum skips and bends, Very Fine

Robert Siegel Auction Galleries, Apr 2009, Sale 971, Lot 1978

U.S., Airmail, $2.60 Zeppelin on 1930 South America Flight, #C15. Tied by April 30, New York cancel, violet and red flight cachets, receiving cancel on reverse, Fine to Very Fine. Scott $600. Estimate $300.

Harmer-Schau Auction Galleries, Oct 2008, Sale 79, Lot 276

$2.60 Graf Zeppelin (Scott C15). Top plate no. 20092 block of six, pretty color, few expertly rejoined perf separations at top right, Very Fine, each stamp with black Sanabria backstamp

Robert Siegel Auction Galleries, Apr 2009, Sale 971, Lot 1960

$2.60 Graf Zeppelin (Scott C15). Right plate no. 20091 block of six with wide selvage, rich color on bright paper, five stamps Mint N.H., top left stamp lightly hinged and with small natural inclusion, superb centering, Extremely Fine, magnificent quality

Robert Siegel Auction Galleries, Apr 2009, Sale 971, Lot 1959

U.S. Airmail Issues, 1930, $2.60 Graf Zeppelin on flight cover, #C15. Tied with City Hall Sta. April 26, 1930 cancel, Friedrichshafen to Lakehurst with green Lakehurst backstamp, flight cachets, Fine to Very Fine. Sieger #57F. Scott $600. Estimate $300.

Harmer-Schau Auction Galleries, Oct 2009, Sale 83, Lot 483

$1.30 Graf Zeppelin (Scott C14). Mint N.H., brilliant color, well-proportioned margins, fresh and Extremely Fine, a gorgeous stamp, with 2008 P.S.E. certificate (XF-Superb 95, SMQ value $1,700.00)

Robert Siegel Auction Galleries, Dec 2008, Sale 967, Lot 5052

$1.30 Graf Zeppelin (Scott C14). Mint N.H. left plate no. 20085 block of six, radiant color and detailed impression, well-proportioned margins, few trivial natural gum bends which are much lighter than normal, Very Fine-Extremely Fine, a superb plate block

Robert Siegel Auction Galleries, Apr 2009, Sale 971, Lot 1933

$1.30 Graf Zeppelin (Scott C14). Mint N.H. with right selvage, beautiful margins with outstanding centering, completely free of the usual gum skips and bends, Extremely Fine Gem, with 2008 P.S.E. certificate (XF-Superb 95, SMQ value $1,150.00)

Robert Siegel Auction Galleries, Sep 2009, Sale 976, Lot 2240

$1.30 Graf Zeppelin (Scott C14). Mint N.H., Extremely Fine, with 2006 P.S.E. certificate (XF 90, SMQ value $790.00)

Robert Siegel Auction Galleries, Dec 2009, Sale 982, Lot 6049