b'104ex 790790P PROOFS: 1986 (SG.516-19) Sea Shells: complete set of Courvoisiers original colour separations and completed designs (without denominations), all IMPERFORATE and affixed to the official Archival pages [#2005/23A & 2005/23B]. in the following denominations: 12t (issued as 15t), 30t (issued as 35t), 40t (issued as 45t) and 60t (issued as 70t) with the stamps as issued also affixed to the pages. A superb and Unique complete set. (28 items). $1,0001,500'