Query: national stamp exhibition
1937 National Exhibition San Jose 1C Costa Rica Airmail Postage Stamp
Germany 1937 Adolf Hitler National Stamp Exhibition Berlin Single Postage Stamp, Catalog No B103a
Israel Stamps 1970 TABIT National Stamp Exhibition Souvenir Sheet #430A
Israel Stamps 1968 TABIRA National Stamp Exhibition Souvenir Sheet #375A
Philadelphia National Stamp Exhibition October 2 1998 Cancelled Envelope
Israel #601 Souvenir Sheet National Stamp Exhibition Netanya 76
USA Stamps: 1934 National Stamp Exhibition Issue. Byrd Souvenir Sheet. SC 735 Mint Hinged.
New York American Labels for 1934 National Stamp Exhibition
Topical Stamp Exhibition 2nd: National Philatelic Museum Volume III Number 12
National Philatelic Museum Topical Stamp Exhibition Vol II #1
National Stamp Exhibition Souvenir Sheet x 3 Cent US Postage Stamps NEW Scot 735