1888 10c blue, small h.r., well centered, fresh color, small diagonal crease, otherwise v.f., with 2016 PFC, cat. $500 (Cat No. E2) (Image)

Cat. $500, Est.US$150

1894 10c blue, n.h., deep intense color, centered to bottom, fresh and fine stamp, with 1985 PFC, cat. $2000 (Cat No. E4) (Image)

Cat. $2000, Est.US$300

1902 10c ultramarine, n.h., fine, with photocopy of a 2016 PSE certificate for a block of six from which this originated, cat. $500 (Cat No. E6) (Image)

Cat. $500, Est.US$150

1911 10c ultramarine, n.h., nicely centered, with 2021 PFC graded "VF-XF 85" (SMQ $305) (Cat No. E8) (Image)

Est.US$250

1914 10c ultramarine, top plate number single, n.h., v.f., with 2021 PSAG certificate for a block of four from which this originated, cat. $425 (Cat No. E9) (Image)

Cat. $425, Est.US$300

1914 10c ultramarine, bottom sheet margin plate number block of six, top stamps hinged, bottom n.h., fairly well centered, v.f., with 2021 PFC, cat. $4000 (Cat No. E9) (Image)

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

1914 10c blue, bottom plate number single, n.h., fine, with a photocopy of a 2021 PFC for a block of four from which this originated, cat. $575 (Cat No. E9a) (Image)

Cat. $575, Est.US$250

1925 15c deep orange, n.h., well centered, fresh color, with 2021 PSAG certificate graded "95" (SMQ $175) (Cat No. E13) (Image)

Est.US$150