1917 $5 light green, bottom margin plate block of six, top middle stamp hinged, others n.h., nice color, fine-v.f., cat. $3000 (Cat No. 480) (Image)

Cat. $3000, Est.$1,500

1917 2c deep rose, Ty. Ia, Imperforate, with Schermack perfs clearly visible at left, neat wavy lines machine cancel, characteristic rich color, faint corner crease at top left, fine example of this rarity, of which only 40 (!) copies recorded (Scott 482A was issued imperforate by the Bureau of Engraving and Printing and sold to the Schermack Company for use in its patented stamp affixing machines, which typically applied stamps one at a time, so in most cases, the hyphen-hole perfs on one side would be cut off. Most surviving examples are either cut well into the design or have the Schermack perfs trimmed away on one side). An important 20th Century U.S. rarity, with 1977 and 2017 PFCs, cat. $65000 (Cat No. 482A) (Image)

Cat. $65000, Est.$12,500

1917 10c orange yellow, horizontal guide line pair, n.h., well centered, with 2018 PFC graded "XF 90" (SMQ $350) (Cat No. 497) (Image)

Est.$300

1917 1c green, used, perfectly centered with jumbo margins, nice color, with 2007 PSE certificate graded "Gem 100J" (SMQ $450 for "100") (Cat No. 498) (Image)

Est.$300

1917 1c green, used, well centered with jumbo margins, nice color, with 2008 PSE certificate graded "Gem 98J" (SMQ $250) (Cat No. 498) (Image)

Est.$100

1917 5c rose, double error in 2c block of twelve, n.h., natural straight edge at bottom, well centered, with 2018 PFC graded "VF 80", cat. $1850 (Cat No. 505) (Image)

Cat. $1850, Est.$850

1917 30c orange red, n.h., near perfect centering, beautiful color, with 2005 PFC and 2008 PSE certificate, the latter graded "XF Sup 95" (SMQ $475) (Cat No. 516) (Image)

Est.$250

1917 30c orange red, block of four, n.h. and post office fresh, couple of tiny natural dried spots at left, v.f. (Cat No. 516) (Image)

Est.$100

1917 2c carmine, n.h., fresh color, fine, with 1992 and 2018 PFCs, cat. $900 (Cat No. 519) (Image)

Cat. $900, Est.$400

1917 2c carmine, lightly cancelled, nicely centered, with 1996 PSE certificate and 2019 PFC graded "VF 80" (SMQ $1,750) (Cat No. 519) (Image)

Est.$1,500

1918 1c green and 2c carmine rose, bottom and top plate no. blocks of six, n.h., some gum wrinkling and spots, still v.f., cat. $560 (Cat No. 531,534) (Image)

Cat. $560, Est.$100

1919 $5 deep green and black, n.h., well centered with wide margins, beautiful color, with 2020 PSAG certificate graded "98" (SMQ $2,650) (Cat No. 524) (Image)

Est.$1,500

1920 2c carmine rose, n.h., jumbo margins with parts of adjoining stamps on all sides, fresh color, with 2017 PFC graded "Gem 100J" (SMQ $400 for "100") (Cat No. 532) (Image)

Est.$250

1920 2c carmine, type VII, bottom margin single, l.h., large margins, fresh color, with 2015 PSE certificate graded "XF-Sup 95" (SMQ $2,350) (Cat No. 534B) (Image)

Est.$2,000

1920 2c carmine, type VII, n.h., large margins all around, fresh color, v.f., with 1988 PFC for a pair from which this came and 2019 PSE certificate graded "XF 90" (SMQ $3,750) (Cat No. 534B) (Image)

Est.$3,000

1923 1c greed, Rotary, perf. 11, used, usual centering, nice color, fine, with 1987 PFC (catalogue value for fine) cat. $3500 (Cat No. 544) (Image)

Cat. $3500, Est.$1,200

1923 1c greed, Rotary, perf. 11, used, well centered for this difficult issue with the design clear of the perforations on all sides, light diagonal crease, otherwise v.f., with 1991 PFC (catalogue value for fine) cat. $3500 (Cat No. 544) (Image)

Cat. $3500, Est.$2,000

1920 $2 carmine and black, n.h., well centered, v.f., with photocopy of 2016 PFC for a block of four from which it originated, cat. $240 (Cat No. 547) (Image)

Cat. $240, Est.$250

1920 $2 carmine and black, n.h., well centered, v.f., with a photocopy of a 2018 PFC for a block of four from which it originated, cat. $240 (Cat No. 547) (Image)

Cat. $240, Est.$150

1920 $2 carmine and black, used, well centered with jumbo margins, with 2019 PSE certificate graded "XF-Sup 95J" (SMQ $200 for "95" and "475" for "98", unpriced as "95J") (Cat No. 547) (Image)

Est.$350

1920 5c deep blue, corner margin single with sideographer's initials, well centered, bright color, with 2007 PSE graded "XF-Sup 95" (SMQ $500) (Cat No. 550) (Image)

Est.$300

1922 5c dark blue, large die proof, die sunk on card, signed by the Postmaster General (Hubert Work), serial number (1176107) on back, v.f., rare, cat. $1000 (Cat No. 557P1) (Image)

Cat. $1000, Est.$750

1922 20c carmine rose, large die proof, die sunk on card, signed by the Postmaster General (Harry S Neu), serial number (1211988) on back, h.r., v.f., rare, cat. $1000 (Cat No. 567P1) (Image)

Cat. $1000, Est.$750

1922 $1 violet brown, large die proof removed from card and trimmed, fine, cat. $1500 (Cat No. 571P1) (Image)

Cat. $1500, Est.$300

1923 $5 carmine & blue, center-line block of four, n.h., natural gum crease at top left, fresh, fine-v.f., with 2015 PSE certificate, cat. $825 (Cat No. 573) (Image)

Cat. $825, Est.$300