Heinrich Köhler Auction 377 - Day 1

1880, Coat of arms, Typographed by The Hamilton Bank Note Co. New York, composite trial colour plate proofs printed from a special plate, position 11-20 showing 1-75c. and twice 100c., on laid watermark paper without gum in lilac, blue, orange, blue-green, brown, light-brown,reddish-orange furthermore in green, carmine, violet, gray-violet and brown on bluish laid paper, total of 12 blocks, fine and scarce group