SPECIAL Cottections Porto. Exposig&o Ateneu, 1971. ~36G: Ateneu 71 intersédcios; exposicfo de filatelia, sot numismatica, medalhistica, filumenismo. Porto, -P83A 1971. lv.(unpaged) illus. 2lcem.
1. Postage-stamps--Exhibitions. I. Title.
® ‘i