U.S. City Despatch Post, New York N.Y., 3c Black on Grayish (6LB1).
Large margins, lightly struck orange-red "U.S." in frame, matching "U.S. City Despatch Post Aug. 24, 1 O'Clock" Type I double-line circular datestamp on cover front only to local street address, light stains and creases, Fine appearance and rare, the carrier stamp, 6LB1, can be distinguished from No. 40L1 only when cancelled with the "U.S."-designated cancel or postmark, only nineteen covers are contained in the Lyons census, as well as ten off-cover stamps, of the 6LB1 covers recorded by Lyons only 15 are confirmed as genuine full covers, ex "Gordon N. John" and Geisler, with 1991 P.F. certificate, Scott value for a full cover is $10,000.00, for an off-cover stamp $2,000.00
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