1917 2c deep rose, type Ia, n.h., v.f., with 2020 PSAG certificate, cat. $550 (Cat No. 500) (Image)

Cat. $550, Est.$300

1917 5c rose, error in 2c horizontal strip of three, n.h., with 2017 PSAG certificate for a block of nine from which this came, graded "75" (SMQ $425) (Cat No. 505) (Image)

Est.$350

1917 5c rose (error), n.h., near perfect centering, with 2020 PSAG graded "95" (SMQ $2,150) (Cat No. 505) (Image)

Est.$1,500

1917 5c rose error in horizontal pair with 2c, n.h., well centered, with 2020 PSAG certificate graded "85" for a block of four from which this came (SMQ $775) (Cat No. 505) (Image)

Est.$500

1920 2c carmine, type VI, top sheet margin single, large margins all around, n.h., with 2019 PSE certificate graded "XF-Sup 95" (SMQ $135) (Cat No. 534A) (Image)

Est.$120

1921 1c green, top margin plate number single, n.h., usual centering for this difficult stamp, fresh color, fine, with 2020 PSAG certificate, cat. $475 (Cat No. 545) (Image)

Cat. $475, Est.$300

1923 10c orange, imperforate, left sheet margin block of four, unused without gum as all are known, v.f., with two panes known, the majority of which have blue crayon markings, with 1999 PFC, ex-Whitman, "Sirron", cat. $6250 (Cat No. 562b) (Image)

Cat. $6250, Est.$3,500

1923 $5 carmine lake and dark blue, top margin plate number single, n.h., fresh color, with 2020 PSAG certificate (SMQ $325) (Cat No. 573a) (Image)

Est.$250

1923 7c black, n.h., well centered, with 2020 PSAG certificate graded "95" (SMQ $325) (Cat No. 588) (Image)

Est.$250

1923 Rotary perf. 11, 1c green, used, well centered with design clear of the perforations on all sides, fresh color, seldom seen in such condition, with 2020 PFC graded "VF 80", a true condition rarity with only two stamps in the population report with a higher grade (SMQ $23,000) (Cat No. 594) (Image)

Est.$15,000

1925 17c black, precisely centered with wide, even margins, fresh color, with 2020 PSAG certificate graded "98" (SMQ $225) (Cat No. 623) (Image)

Est.$150

1928 2c carmine, type II, n.h., nice color, v.f., with 1991 and 2018 PFCs, cat. $600 (Cat No. 634A) (Image)

Cat. $600, Est.$400

1928 2c carmine, type II, plate block of four, top stamps l.h., bottom stamps n.h., nice color, right stamps nicely centered, fine-v.f., with 2020 PFC, cat. $2000 (Cat No. 634A) (Image)

Cat. $2000, Est.$1,000

1929 3c violet, n.h., near perfect centering, with 2020 PSAG certificate (SMQ $185) (Cat No. 672) (Image)

Est.$150

1929 Nebraska, 10c orange yellow, n.h., well centered, with 2020 PSAG certificate (SMQ $300) (Cat No. 679) (Image)

Est.$350

1929 Ohio River Canal, 2c lake, top margin plate block of six, n.h., well centered, fresh color, v.f. and undoubtedly rare plate block of this better shade, unlisted in Scott, with 2020 PSAG certificate graded "85" (catalogue value for ungraded singles) cat. $3900 (Cat No. 681a) (Image)

Cat. $3900, Est.$7,000