1867 2c black, Z.Grill, unused with original gum, h.r., well defined Grill, usual centering, tiny perf. flaws at top, otherwise fine, with 2019 PFC (the 2c Z.Grill is one of the most difficult to obtain with decent centering, as evident from the PSE Population Report, which lists only five stamps with original gum, graded 10 (two), 20, 30 and 50) cat. $17500 (Cat No. 85B) (Image)

Cat. $17500, Est.$1,500

1867 3c rose, Z.Grill, unused with original gum, h.r., usual centering, fresh and fine, an extremely difficult stamp to find sound and with original gum, with 1955 and 2019 Philatelic Foundation Certificates, cat. $25000 (Cat No. 85C) (Image)

Cat. $25000, Est.$5,000