1920 Security Banknote Co. unexploded booklet with 36 different engravings "Steel Colors", both lithographed and engraved, some corrected by hand with engraver's notations, brown binder with gold inscriptions, very rare (Image)

Est.US$1,500

1934 die essay for the "Fuchs and Lang Mfg Co.", reversed design in brown, v.f. (Image)

Est.US$200

1934 Color Charts, 23 different sheetlets of eight, showing four diff. designs, various colors noted, each with red handstamp "return to record & specimen dept.", all gummed, few minor faults, mostly v.f. (Image)

Est.US$5,000

1934 3c green, large die proof die sunk on card, v.f. (Image)

Est.US$500

1934 5c Rembrandt, large die proof in green, die sunk on card, v.f. (Image)

Est.US$500

1934 3c Eagle, large die proof in black, die sunk on card, v.f. (Image)

Est.US$500

1934 American Bank Note Co., three different large die proofs printed for "S.A.G.", diff. religious designs, each with "for litho" inscription, all die sunk on cards, v.f. (Image)

Est.US$500

1935 American Banknote Co., large die essay in green, die sunk on card, v.f. (Image)

Est.US$750