#294a, 1c Pan-American, Center Inverted, wonderfully well centered amid generous balanced margins, strong fresh colors and clear impression, skillfully regummed over a repair, extremely fine appearance; a choice appearing example of this ever popular inverted center; 1990 PF certificate. (Image)

CV. $12,500.00

#295a, 2c Pan-American, Center Inverted, an affordable mint example of this important 20th century error rarity, centered a bit to left, but not objectionably so, with the perforations clearing the design, disturbed o.g., sealed tear at left and a bit faded, otherwise fine; 2018 PSE certificate. (Image)

CV. $55,000.00

#296a, 4c Pan-American, Center Inverted, with "Specimen" type E handstamp, well centered and margined despite being reperforated at top and left, original gum, "Specimen" handstamp apparently lightened after the accompanying certificate was issued, very fine appearance; 1991 PF certificate. (Image)

CV. $11,500.00