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Altmann, Sol
U.S. Patent Papers Relating to the Improvement and Protection of Stamps : Defacement Experiments / Sol Altmann
STA IN : Postal History Journal December 1961 N. 7. - [s.l.] : Postal History Society, 1961. - P. 57-63 : ill. b.n. ; 25 cm.
Abstract: Story of various methods to prevent reuse of stamps, testing by the P.O. Dept 1860s-1890s
Tipo: 111 - Analitico
| Lingua: ENG
| Paese: US
| Codice: XABPO0143458
| MFN: 0015239