1870 6c carmine, unused (regummed), well centered for issue, fresh color, faintly creased, with 2018 APS certificate (catalogued as unused without gum) cat. $1750 (Cat No. 137) (Image)

Cat. $1750, Est.$250

1870 15c orange, neat cancel, well centered with wide margins, nice color, small corner crease, otherwise v.f., with 1989 PFC, cat. $1500 (Cat No. 141) (Image)

Cat. $1500, Est.$350

1870 15c bright orange, unused (regummed), well centered, reperforated and creased, fine appearance, with 2018 APS certificate (catalogued as unused without gum) cat. $1300 (Cat No. 152) (Image)

Cat. $1300, Est.$150

1870 90c carmine, unused (regummed), well centered, reperforated, perf. creases, fine appearance, with 2018 APS certificate (catalogued as unused without gum) cat. $1800 (Cat No. 155) (Image)

Cat. $1800, Est.$200

1870 1c ultramarine, unused with full original gum, l.h., well centered, v.f., with 1997 PFC, cat. $200 (Cat No. 156) (Image)

Cat. $200, Est.$100

1873 30c gray black, unused (regummed), well centered, rich color, reperforated at left, otherwise fine, with 2018 APS certificate (catalogued as unused without gum) cat. $1200 (Cat No. 165) (Image)

Cat. $1200, Est.$150

1873 Helms Essays, 1c+2c frame, die on proof paper, eight different colors, some peripheral flaws, fine-v.f. (Image)

Est.$750

1873 Helms Essays, 6c+7c frame, die on proof paper, eight different colors, fine-v.f. (Image)

Est.$750

1873 Helms Essays, 12c+24c frame, die on proof paper, eight different colors, fine-v.f. (Image)

Est.$750

1873 Helms Essays, 30c+90c frame, die on proof paper, seven different colors, peripheral faults, mostly fine-v.f. (Image)

Est.$600