Auction 309-320 - Europe & Overseas - Day 3

1900: Postage Due issue, American Bank Note Co. Die Proofs, imperforate and printed in black on India paper affixed to cards, the original Master Die without numeral and the complete set of 7 values from 1 c. to 50 c. complete, all marginal at base with file numbers (re-numbered) and ABN imprint at base of each Proof. A scarce and most attractive group, unique. Ex the Brian Moorhouse estate.