79-E28c, 3¢ very light gray, imperf, Essay on Loewenberg paperlight impression, just 4-margins, close at right, no gum (Image)

Cat. US$25.00

J15P4 - J21P4, 1¢ - 50¢ Postage Due, bright claret, imperf Proof on Card, VF, no gum, Hr (Image)

Est. US$135.00

O36P4, O40P4, 2¢ & 10¢ Navy Dept, ultramarine, perf 12, Proofon card, VF, no gum (Image)

Est. US$20.00

O48P4 - O56P4, 2¢-90¢ P.O. Dept, black, imperf Proof on card, no 1¢ o/w cplt, FVF, no gum (Image)

Est. US$90.00

O72S, 1¢ Treasury, dark brown, dk. blue SPECIMEN ovpt, FVF, no gum (Image)

Est. US$80.00

O74P4, O90P4, 3¢ Treasury, dark brown, VF and 15¢ War Dept, rose, F-FVF, imperf Proofs on card, both no gum (Image)

Est. US$20.00

RO-112P3, 1¢ Telegraph Matches, blue, plate proof on India paper, top & bottom margins trimmed, large side margins, no gum (Image)

Est. US$270.00

RO-132P3, 1¢ Matches, blue, imperf plate proof on India paper, three nice margins, cut in slightly at top right, no gum (Image)

Est. US$270.00

RS-31P3, 1¢ green, plate proof on India paper, Fine, no gum (Image)

Est. US$100.00

RS-39P3, 1¢ black, plate proof on India paper, torn in two, two halves rejoined, FVF appearing (Image)

Est. US$100.00

RS-40P4, 2¢ green, plate proof on card, F-FVF, no gum (Image)

Est. US$100.00

RS-41P3, 4¢ brown, plate proof on India paper, FVF, no gum (Image)

Est. US$125.00

RS-132P4, 4¢ black, plate proof on card, VF, no gum (Image)

Est. US$75.00

RS-141P3, 4¢ green, plate proof on India paper, thins, Fine appearing, no gum (Image)

Est. US$360.00

RS-274P3, 1¢ green, plate proof on India paper, Fine, no gum (Image)

Est. US$65.00

RS-274P4, 1¢ green, plate proof on card, VF, no gum (Image)

Est. US$60.00

RU-3P3, 4¢ black, plate proof on India paper, crease, cut in at bottom, Fine appearing (Image)

Est. US$100.00

RU-6P3, 10¢ blue, plate proof on India paper, cut in at right & bottom, Fine, no gum (Image)

Est. US$100.00