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