SPECIAL LLECTIONS Porto. Exposig&o do Bureau d'échanges philaté-
aicteles liques, 1st, 194. ~POLY Cat&logo ... 1.4 Bepex. Porto, 194. . B89C
32p. illus. 2hcm.
1. Postage-stamps--Exhibitions. I. Bureau d'échanges philatéliques.
@ MB-Rey.