1952-57 Queen Isabella and 1957 Revolution, selection of 64 imperforate plate proofs of center and frame, issued colors, each with security punch, fine-v.f. (Image)

Est.US$250

1929-33 selection of overprints, Air Post Officials, some older issues, mostly varieties, missing letters, inverted overprints, imperf. between, some older items, mostly fine or better. An old-time holding, ex-Serebrakian (Image)

Est.US$1,000

1930-33 A comprehensive study of 7,000+ mostly unused stamps in five albums, singles, pairs, blocks of four and larger, varieties of overprint and surcharge, double, inverted, omitted, shifted and displaced, some complete settings of 25, also 19 covers and postcards, reference material and much more, mostly fine-v.f. A truly incredible lot (Image)

Est.US$15,000