
April 1992
For the meeting of April 21, 1992 Calvet M. Hahn gave an hour long presentation on cross-border mails involving stampless covers. He began with 14 slides showing various rarities, most of which were subsequently passed around. He then moved into Part I of the program, passing around a series of covers relating to transportation methods used on cross-border mails—steamboat, railroad and express company covers.
Picking up from his chapter on Inland Waterways in his 1970 book Ess...
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