1865 5c-25c, set of three plate proofs on card, v.f., cat. $225 (Cat No. PR2/6P4) (Image)

Cat. $225, Est.US$100

1875 5c-25c, set of three plate proofs on card, v.f., cat. $195 (Cat No. PR5-7P4) (Image)

Cat. $195, Est.US$100

1875 $6 ultramarine, never hinged, perforations trimmed away at top, fine appearance, seldom offered unhinged, with 2018 PFC (catalogue value for hinged) cat. $4000 (Cat No. PR26) (Image)

Cat. $4000, Est.US$700

1875 Special Printing, 24c pale rose, unused without gum as issued, even margins all around, minor paper flaw, not mentioned on the accompanying certificate, otherwise v.f., with 1980 PFC, cat. $2100 (Cat No. PR41) (Image)

Cat. $2100, Est.US$500

1875 Special Printing, 36c pale rose, unused without gum as issued, fine, only 330 issued, with 2001 PFC, cat. $2800 (Cat No. PR42) (Image)

Cat. $2800, Est.US$1,200

1875 Special Printing, 48c pale rose, unused without gum as issued, fine, only 268 issued, with 2003 PFC, cat. $3750 (Cat No. PR43) (Image)

Cat. $3750, Est.US$1,500

1875 Special Printing, 84c pale rose, unused without gum as issued, fine, only 164 issued, with 2001 PFC, cat. $5750 (Cat No. PR46) (Image)

Cat. $5750, Est.US$2,000