Lot
1375 
1938, 3¢ Presidential, tied by "Tucson Ariz., Oct 30, 1945" wavy machine cancel to Undercover P.O. Box 1663, Santa Fe, N.M. "U.S. Army Examiner" censor tape at right and "Paid by Examiner, Base 2296 Army" circular censor handstamp, Very Fine and scarce use to undercover Manhattan Project address. Scott No. 807 Estimate $200 - 300.
"P.O. Box 1663" in Santa Fe N.M. was assigned to a scientist assigned to the Manhattan Project, which was located in Los Alamos N.m. and developed the atomic bomb. This was censored by U.S. Army censors.
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Realized: $700