Lot 1474
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U.S. Postal Stationery Collections, Air Mail Test Envelopes, group of seven legal size test envelopes, comprising used AMO-1 watermarks 47 (tear) and 49, AMO-2 watermark 47 used, and wmk 49 (three unused and one used), F.-V.F. and unusual group.
UPSS #AMO-1, AMO-2, realized $374 2011 auction .
Estimate $200-250.
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| Realized $489 |
