1879 "Helms" Essays, 15 essays on proof paper, in different colors, with 1c (6), 2c (6) and 3c (3), fine-v.f. (Cat No. 182-E2d,184-E1b) (Image)

Est.$750

1879 Schernikow 1903 Reprints, set of five on proof paper, fine-v.f., cat. $475 (Cat No. 182-E2d-190-E1c) (Image)

Cat. $475, Est.$150

1879 3c Washington, blue die essay on ivory glazed paper, 65x72mm, v.f., cat. $750 (Cat No. 184-E13b) (Image)

Cat. $750, Est.$250

1879 3c Washington, black brown die essay on ivory glazed paper, 53x62mm (slightly reduced), v.f., cat. $500 (Cat No. 184-E14b) (Image)

Cat. $500, Est.$150

1879 3c "Portage" error, blue die essay on ivory glazed paper, 34x37mm, fine, cat. $750 (Cat No. 184-E15c) (Image)

Cat. $750, Est.$150