Fifty-second American Philatelic Congress : October 24-26, 1986 : Ambassador Hotel. Los Angeles, California. /
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| Fformat: | Llyfr |
| Iaith: | English |
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Eitemau Tebyg: Fifty-second American Philatelic Congress :
- Forty-third American Philatelic Congress : October 7-9, 1977 : Palmer House Hotel /
- A guide to manuscrits relating to the American Indian in the Library of the American Philosophical Society /
- Philatelic Terms Illustrated /
- Philatelic Terms Illustrated /
- Programa EXMEX'63 : 77a Convención de "The America Philatelic Society" : Octubre 7 al 12, Hotel Prado /
- Archive für deutsche Postgeschichte : XIX° Congrès UPU Hamburg 1984 Weltpostkongress. Sonderheft. October 7-9, 1977 : Palmer House Hotel /