15P-21P, 1892-96 1c-1P Map of Panama, Die proofs in issued colors on india die sunk on card (150x225mm except for the 10c in horiz format), each with die number and ABN Co imprint below design and a penciled number at the bottom right corner of the card, Very Fine (Image)

CV. 1,500

197, 1909 1c Dark green and black, Frame and vignette die proofs on card, top margin blocks of ten in issued colors, each with marginal markings, Very Fine and choice (Image)

CV. 200

197P, 1909 1c Dark green and black, Vignette and frame plate proofs, bottom margin blocks of eight in issued colors, each with approval initials in the margin, frame proof some vertical creasing affecting the right block of four, otherwise Very Fine (Image)

CV. 150

220P-231P, 1921 ½c-50c Centenary, Plate proofs in green, accumulation of 100s of singles and blocks on card with block sizes as large as 64, most of the duplication in the ½c-2c and 5c values with the others generally less than 20 each, some faults (mostly creases) but generally F-VF; ex-American Bank Note archives

CV. 500

220P-231P, 1921 -+c-50c Centenary, Plate proofs on card (mostly) or india removed from card in issued colors; accumulation of many 100s with singles and multiples, mixed condition with good number creased, torn, scuffed, etc. though there will be many sound and VF, view to appreciate; ex-American Bank Note Co archives (Image)

CV. 250

234P-243P, 1924 -+c-1B Coat of Arms, Die proofs in issued colors on india die sunk on card (152x228mm), 2c with die number and American Bank Note Co imprint below design, others with die number above design, each with a penciled file number at lower right corner, Very Fine (Image)

CV. 500

C21P-C26P, 1936 5c-1B Postal Congress, Die and master proofs in issued colors on india die sunk on card plus master proof of the horizontal design in black with blank vignette and value tablets, 227x151mm (reverse for vertical designs), fresh and Very Fine (Image)

CV. 400

J1P-J4P, 1915 1c-10c Postage Dues, Die proofs in issued colors on india die sunk on card (230x155mm), each with die number and ABN Co imprint below design, each with penciled "25551" in bottom right corner, J2 with "imperfect" noted in the lower left corner, Very Fine (Image)

CV. 300