b'99Ex 876876P PROOFS: The 1978-80 1s - $5 SHELLS definitive issues: Courvoisiers original colour separations and the completed designs; all imperforate and affixed to their official archival album pages [#1689, 1690] dated 25/5/1978, [#1691] dated 30/8/1978, [#1738] dated 19/3/1979 and [#1811] dated 1/12/1980. UNIQUE. (89 items). . $2,5003,500'