1875 1c-90c, complete set of eight Panama-Pacific small die proofs (5c listed as a regular issue and not a Reprint), large margins all around, nice colors, usual toning and tiny pinholes, otherwise v.f. (only 413 different die proofs were printed in 1915 for the Panama-Pacific Exhibition, with only five or less produced for each stamp), extremely rare and quite possibly the only known complete set, ex-Wagshal, cat. $23500 (Cat No. 12P2a, 40P2a/47P2a) (Image)

Cat. $23500, Est.US$7,500

1875 24c blackish violet, Panama-Pacific small die proof, usual thins and faint toning, otherwise v.f., only 413 different die proofs were printed in 1915 for the Panama-Pacific Exhibition, with only five or less produced for each stamp, ex-Falk Finkelburg, cat. $2500 (Cat No. 45P2a) (Image)

Cat. $2500, Est.US$750