b'66376P Buildings & Architecture - Proofs: El Salvador 1961 150th Anniversary of Independence (SG 1154-63) complete set of imperforate colour separations for the ten denominations, affixed to five pages from the printers records. Ex Courvoisier Archives. (60 items)$1,0001,250ex 377 378377** Christmas & Christianity: Nauru 1976 5c to 25c Christmas set in imperforate proof blocks of 10, plus imperforate colour separation proofs x8 for each value in blocks of 4; also 1980 & 1981 Bible Verses Christmas issues in matched imperforate se-tenant pairs; all on gummed unwatermarked paper.Nice lot for Christmas or Religion thematicists. (188). .$400500378P Flowers & Plants - Proofs: Algeria 1969 Flowers Issue, Courvoisiers original colour separations and completed designs, all imperforate and affixed to the official Archival album page [#1006], dated 30/10/1968. Beautiful and unique. (25 items). $400600ex 379 380379P Flowers & Plants - Proofs: Algeria 1972 Flowers Issue, Courvoisiers original colour separationsand completed designs, all imperforate and affixed to the official Archival album page [#1261 & 1262],dated 17/2/1972. Accompanied by the issued perforated stamps. Beautiful and unique.(15 imperfs + 3 issued stamps). .$300400'