b'53ex 321 ex 322321p Religion - Proofs : Colombia 1955 (re. Scott. 638 & C273) 5c Hotel Tequendama & Church of San Diego & the 15c Airmail Courvoisiers extensive colour trials and separations for the 5c stamp, plus a series for consideration in a slightly smaller format, all imperforate and affixed to the official Archival album pages [#202-205] all lacking BOGOTA in the text at the top left and with minor differences in the design;together with colour separations for the 5c and 15c Airmail complete designs, as issued [page #206].Absolutely complete, being every item in the printers archive relevant to these issues. (66 items) $1,5002,000322P Religion - Proofs: El Salvador 1964 Eucharistic Congress Issue, Courvoisiers original colour separations, colour trials & unadopted completed designs, all imperforate & affixed to the official Archival album pages [#776 & 777] dated 27/12/1963. The issued stamps incorporated most elements of the Courvoisier proposal Unique and important. Ex Courvoisier Archives. (24 items).$9001,200ex 323 ex 324323P Religion - Proofs: Venezuela 1952-53 Virgin of Coromoto Issue, Courvoisiers original colour trials,colour separations and complete designs, all imperforate & affixed to the official Archival album pages[#126, 127, 128, 129, 130, & 131] dated 15/7/1952. Unique and important. Ex Courvoisier Archives.(54 items) $2,5003,000324P Trees - Proofs: Algeria 1977 Flowering Trees Courvoisiers original colour separations & completed designs,all imperforate affixed to the official Archival album pages [#1661], dated 2/8/1977. Beautiful & unique(20 items). .$400600'