U.S. and Worldwide Stamps and Covers

1959 Visit of Francis, Cardinal Spellman to Managua, imperforate progressive trial color proofs on gummed paper, selection of 16 sets of 7, for a total of 112 different, variety of colors, each proof with a plate number and guide-lines. In addition, there are unissued color trials (three of each) of the 1957-58 Ecclesiastical and Cathedrals sets, plus printer's mock-up of the Refugees souvenir sheet. A very fine and rare group, ex-Matthews collection
Estimate: $2500