SPECIAL
COLLECTIONS
*scG POLO .P53M wis
no.2
 
Philadelphia. National Philatelic Museum.
end Topical Stamp Exhibition, National Phila- telic Museum, April 28-June 24, 1951; under the auspices of Topical Philatelists, inc. Phila- delphia, National Philatelic Museum [1951]
64p. illus. 23cm. (Its Official bulletin, v.3,no.2)
1. Postage-stamps--Topics--Exhibitions. I. Topical Philatelists, inc., New York.
© 16