1914 1c green, booklet pane of six, unused without gum, tiny corner margin crease at bottom left, otherwise fine, with 2018 PFC (this pane was formerly listed in Scott as number 424e and subsequent research has shown that these are fabrications made from ungummed press sheets which were housed in the Smithsonian) (Image)

Est.$250

1914 8c pale olive green, l.h., well centered with wide margins, pencil notation on gum, with 2020 PSAG certificate graded "95" (SMQ $125) (Cat No. 414) (Image)

Est.$100

1914 50c violet, l.h., v.f., with 2019 PFC, cat. $210 (Cat No. 422) (Image)

Cat. $210, Est.$150

1914 20c ultramarine, n.h., wide margins, fresh and v.f., with 1997 PFC for a pair from which it originated, cat. $425 (Cat No. 438) (Image)

Cat. $425, Est.$350

1914 3c violet, n.h., nice color, with 2019 PSAG certificate graded "75" (SMQ $350) (Cat No. 445) (Image)

Est.$350

1915 2c carmine, disturbed original gum, well centered, fresh color, small thin spots, otherwise v.f., seldom seen with such nice centering, with 1999 PSE certificate, cat. $2500 (Cat No. 449) (Image)

Cat. $2500, Est.$1,500

1915 4c brown, horizontal pair, n.h., near perfect centering, beautiful color, with 2020 PSAG certificate graded "98" (SMQ $925) (Cat No. 457) (Image)

Est.$700

1914 2c carmine, horizontal joint line pair, n.h., large margins all around, fresh color, with 1992 PFC and 2017 PSE certificate, the latter graded "XF 90" (SMQ $1,750) (Cat No. 459) (Image)

Est.$1,500

1915 Perf. 10, $1 violet black, horizontal pair, h.r., centered to bottom, fresh, v.g., cat. $1300 (Cat No. 460) (Image)

Cat. $1300, Est.$250

1915 2c pale carmine red, corner margin block of four, n.h., well centered, fresh and v.f., with a photocopy of a 2019 PFC for a block of 20 from which this came (catalogue value for singles) cat. $1300 (Cat No. 461) (Image)

Cat. $1300, Est.$1,500

1915 2c pale carmine red, top Plate No. block of six, h.r. at top, pencil markings in margin, fresh, rare plate block, cat. $1500 (Cat No. 461) (Image)

Cat. $1500, Est.$300

1916 3c violet, bottom margin plate block of six, h.r., fine, cat. $1500 (Cat No. 464) (Image)

Cat. $1500, Est.$350

1916 $1 violet black, l.h., well centered, v.f., with photocopy of a 2020 PSAG certificate for a block of four from which it originated, cat. $600 (Cat No. 478) (Image)

Cat. $600, Est.$300

1916 $1 violet black, top margin single, n.h., fine, with photocopy of a 2020 PFC for a block of four from which this came, cat. $1400 (Cat No. 478) (Image)

Cat. $1400, Est.$500

1916 $1 violet black, block of four, bottom left stamp n.h., balance l.h., well centered, with 2019 PSE certificate graded "XF 90" (SMQ $4,600 as singles) (Cat No. 478) (Image)

Est.$3,000

1917 5c rose, n.h., well centered with wide margins, with 2019 PSE certificate graded "XF 90" (SMQ $1,050) (Cat No. 505) (Image)

Est.$900

1917 11c light green, perf. 10 at top, used, well centered with wide margins, thinned at top and right, v.f. appearance, with 2019 PFC, cat. $3750 (Cat No. 511a) (Image)

Cat. $3750, Est.$750