1901 1c green & black, center inverted, h.r., well centered, with wide margins, deep rich colors on post-office fresh paper, v.f., with 1993 PSE certificate and 2009 PFC (the 1c Pan-American Inverts were found in at least four different post offices around the country. Of the 600 to 700 known, most have disturbed gum and are off-center. The example offered here is remarkably fresh), ex-Hampshire collection, cat. $12500 (Cat No. 294a) (Image)

Cat. $12500, Est.$5,000

1901 5c ultramarine & black, right margin bottom Plate No. Imprint block of eight, n.h., well centered, v.f., cat. $4110 (Cat No. 297) (Image)

Cat. $4110, Est.$1,500