1917 5c rose, n.h., well centered, parts of adjoining 2c stamps on all sides, with 2024 PSE certificate graded "XF 90" (SMQ $1,050) (Cat No. 505) (Image)

Est.US$800

1917 5c rose, double error in 2c block of 12, n.h., natural straight edge at bottom, lower right 2c stamp with gum disturbance, fine-v.f., cat. $1850 (Cat No. 505) (Image)

Cat. $1850, Est.US$500

1917 5c red, single error in 2c block of 28, with plate block of six 2c (#7942) at bottom, n.h., fine-v.f., cat. $1070 (Cat No. 505) (Image)

Cat. $1070, Est.US$500

1917 30c orange red, top margin Plate No. 6911 block of six, used Aug.21, 1923 on flown cover from New York to Los Angeles, v.f., with arrival pmk (Cat No. 516) (Image)

Est.US$150

1918 $5 orange red and black, l.h., well centered with jumbo margins, beautiful color, with 2023 PSE certificate graded "XF-Sup 95J" (SMQ $1,000) (Cat No. 523) (Image)

Est.US$750

1918 $5 orange red and black, used, well centered with jumbo margins, with 2024 PSE certificate graded "VF-XF 85J" (SMQ $350) (Cat No. 523) (Image)

Est.US$250

1918 $5 deep green and black, n.h., well centered, fresh and v.f., with 2012 APS certificate, cat. $340 (Cat No. 524) (Image)

Cat. $340, Est.US$150

1920 2c carmine, Type V, block of four, n.h., v.f., cat. $800 (Cat No. 533) (Image)

Cat. $800, Est.US$250

1920 1c green, Cleveland, Ohio precancel, well centered for this difficult issue, fine and rare, with 2002 and 2023 PFCs, cat. $3500 (Cat No. 544) (Image)

Cat. $3500, Est.US$2,000

1920 5c deep blue, top margin single, near perfect centering, beautiful color, with 2011 PSE certificate graded "Superb 98" (SMQ $1,575) (Cat No. 550) (Image)

Est.US$700

1922 2c carmine, perf. 10 at top, wavy line machine cancel, facial abrasions and thinning, otherwise fine example of this rare stamp, with 2023 PFC, cat. $5000 (Cat No. 554d) (Image)

Cat. $5000, Est.US$800

1922 10c orange, top margin plate number block of six, n.h., well centered, bright color, fresh and v.f. block, with 2023 PSE certificate, cat. $400 (Cat No. 562) (Image)

Cat. $400, Est.US$500

1922 7c black, plate number block of four, n.h., well centered, fresh and v.f., with 2023 PSE certificate, cat. $425 (Cat No. 588) (Image)

Cat. $425, Est.US$400

1923 1c green, Rotary, perf. 11, used, exceptionally well centered for this notoriously off center stamp (Scott catalogue value is for examples with perforations touching the design), nice color, a wonderful opportunity to acquire one of the finest of the approximately 110 used copies (Siegel census of Scott 594 records 112 used stamps, many with perforations cutting in on one or more sides, or with faults), ex-Klein, Zoellner and Gorham, with 1975, 1998 and 2022 PFCs, the latter graded "XF 90" (SMQ $90,000) (Cat No. 594) (Image)

Est.US$25,000

1923 2c carmine, n.h., fine, with photocopy of a 2024 PSE certificate for a strip of three from which this originated, cat. $240 (Cat No. 599A) (Image)

Cat. $240, Est.US$150

1923 2c carmine, horizontal pair, n.h., fine, with 2024 PSE certificate for a strip of three from which this originated, cat. $500 (Cat No. 599A) (Image)

Cat. $500, Est.US$400

1924 1c dark green, n.h., perfectly centered with even margins, with 2020 PSAG certificate graded "100" (SMQ $1,300) (Cat No. 614) (Image)

Est.US$600

1924 2c carmine rose, left margin single, near perfect centering, bright color, with 2020 PSE certificate graded "Superb 98" (SMQ $475) (Cat No. 615) (Image)

Est.US$200

1928 2c carmine, n.h., well centered, v.f., with a photocopy of a 2006 PSE certificate for a block of 15 from which this originated, cat. $600 (Cat No. 634A) (Image)

Cat. $600, Est.US$300

1928 Hawaii, 5c blue, sheet of 100, well centered, n.h., fine-v.f., cat. $2439 (Cat No. 648) (Image)

Cat. $2439, Est.US$400