1901 1c green & black, center inverted, l.h., bottom sheet margin single, well centered, fresh, with 1990 PSE certificate and 2022 PFC graded "VF-85" (SMQ $17,500). A beautiful inverted center, unusually fresh (most examples are off-center and/or have disturbed gum) (Cat No. 294a) (Image)

Est.US$14,000