1893 10c orange, plate proof on card, left sheet margin block of four, fresh, v.f. (Cat No. E3) (Image)

Est.US$200

1902 10c ultramarine, bottom margin plate number and imprint horizontal strip of three, middle stamp n.h., other two hinged, fine-v.f., with 2021 PFC (catalogued as singles) cat. $980 (Cat No. E6) (Image)

Cat. $980, Est.US$650

1911 10c ultramarine, bottom plate number single, n.h., well centered with jumbo margins, with 2022 PFC graded "XF 90J" (SMQ 850) (Cat No. E8) (Image)

Est.US$500

1914 10c ultramarine, bottom plate number block of six, top stamps n.h., bottom stamps hinged, fine-v.f., with 2019 PFC cat. $4000 (Cat No. E9) (Image)

Cat. $4000, Est.US$1,500

1927 10c violet, horizontal pair imperf. between, n.h., v.f., cat. $575 (Cat No. E15c) (Image)

Cat. $575, Est.US$150