1951 400th Anniversary of the founding of La Paz, selection of 16 different imperforate proofs, each cut to stamp size and affixed on printer's card, some with letters from Security Bank Note Co. ("received and approved", dated 1949), v.f. and scarce group (Cat No. 342/C149P) (Image)

Est.$1,000

1951 400th Anniversary of the founding of La Paz, collection of 43 imperforate and gummed proof sheetlets (23 Postage and 20 Air Post), all designs and values represented, including frame only, center only and finished design, some trial colors, many with staple holes in margins, minor flaws possible, generally fine-v.f. (Cat No. 342-41,C140-149P) (Image)

Est.$1,000

1951 400th Anniversary of the founding of La Paz, selection of eight different perf. or imperf. souvenir sheets of three or four, each stamp with security punch and overprinted "Specimen" in red, n.h., fine-v.f. (Cat No. 348a/C140bS) (Image)

Est.$500

1951 Fifth Athletic Championships Issue, selection of 12 different imperforate proofs, each cut to stamp size and affixed on printer's card, also a letter from Security Bank Note Co. ("received and approved", dated 1949), v.f. and scarce group (Cat No. 352/C156P) (Image)

Est.$1,000

1951 Athletic Championships, 20c Boxing, two imperforate die proofs, one reading "Boxeo" and the other "Box", each cut to stamp size and affixed on dated printer's card, v.f. (Cat No. 352P) (Image)

Est.$250

1951 Athletic Championships, 50c Tennis, two imperforate proof sheetlets on gummed paper, one frame only in green, the other center only in black, each with marginal staple holes, v.f. (Cat No. 353P) (Image)

Est.$250

1951 Athletic Championships, 1.40b Soccer, two imperforate die proofs, one reading "Futbol" and the other "Foot-Ball", each cut to stamp size and affixed on dated printer's card, v.f. (Cat No. 355P) (Image)

Est.$250

1951 Athletic Championships, 2b Skiing, two imperforate die proofs, one reading "Esqui" and the other "Ski", each cut to stamp size and affixed on dated printer's card, v.f. (Cat No. 356P) (Image)

Est.$250

1954 Agrarian Reform, imperforate horizontal pairs, complete set, also two additional pairs of 20b and 100b, l.h., v.f. (Cat No. 384-87,C176-81var) (Image)

Est.$150

1951 400th Anniversary of the founding of La Paz, 20b imperforate trial color proof sheetlets, two different on gummed paper, marginal staple holes, fine-v.f. (Cat No. C140P) (Image)

Est.$150

1951 Athletic Championships, 5b Stadium, two imperforate die proofs, one reading "Estadio La Paz", with "II Congresso Nacional de deportes 1948" inscription at bottom and the other (rejected) "Estadium La Paz" (penciled "to be revised") and "V Campenato Sudamericano de atletismo La Paz Octobre 1948" inscription at bottom, each cut to stamp size and affixed on dated printer's card, v.f. (Cat No. C156P) (Image)

Est.$250