U.S.P.O., Philadelphia Pa., 1c Black on Rose, "L P" (7LB1). Two full margins, left and top framelines cut into, uncancelled, used on Nov. 2, 1850 folded letter to street address, lightly struck blue Philadelphia circular datestamp, faint toning and small scuffs around address, Fine and very scarce, 12-15 reported in Lyons census (The Penny Post, July 2006), ex Gibson and Meyersburg, with 1997 P.F. certificate, Scott Retail $2,000.00

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U.S.P.O., Philadelphia Pa., 1c Black on Rose, "L S" (7LB4). Huge margins at bottom and left, touched at top and just shaved along right frameline, uncancelled, blue "Philada. Pa. 5 May 26" integral-rate circular datestamp on blue May 25, 1849 folded letter to Smithport Pa., sender's routing "Via Harrisburg & Bellefonte" (railroad), file fold clear of stamp

AN EXTREMELY FINE AND ATTRACTIVE COVER WITH THE "LS" PHILADELPHIA CARRIER STAMP.

This May 26 postmark on a clearly-dated 1849 letter is an appropriate date of use of the "LS" stamp. The Philadelphia carrier service was reorganized in February 1849, and stamps were issued at that time. 12-15 7LB4 covers are reported in Lyons census (The Penny Post, July 2006).

Ex Caspary

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U.S.P.O., Philadelphia Pa., 1c Black on Rose (7LB6). Traces of four framelines, uncancelled, blue "Philada. Pa. 5 cts. Dec. 14" integral-rate circular datestamp on large part of folded cover to Norristown Pa., docketed with 1849 year date, fresh and Fine, 13-14 7LB6 covers reported in Lyons census (The Penny Post, July 2006), only two or three are tied by the postmark, ex Caspary

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U.S.P.O., Philadelphia Pa., 1c Black on Blue Glazed (7LB7). Large bottom margin, frameline at right is complete, traces of others, uncancelled, used on 1850 folded letter to Burlington N.J., blue "Philada. Pa. 5 cts. Jun. 27" integral-rate circular datestamp, stamp has slight rubbed spots in surface color as usual, Very Fine, very scarce, 17-18 reported in Lyons census (The Penny Post, July 2006), ex Caspary and Golden, with 2000 P.F. certificate declining opinion as to whether the stamp originated on this cover

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U.S.P.O., Philadelphia Pa., 1c Black on Vermilion Glazed (7LB8). Framelines complete on two sides, others slightly in, scissors-cut at bottom left, uncancelled, bold blue "Philada. Pa. 5 Jul. 19" integral-rate circular datestamp on 1849 folded letter to Roadstown N.J., fresh and Fine, attractive example of this very scarce carrier usage, 20-22 reported in Lyons census (The Penny Post, July 2006), ex Meyersburg, with 1997 P.F. certificate

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U.S.P.O., Philadelphia Pa., 1c Gold on Black Glazed (7LB11). Large margins to clear at top, clear impression, uncancelled, used on cover to Buffalo N.Y., lightly stuck blue "Philada. Pa. 10 Jun. 4" integral-rate circular datestamp, some toned specks, Very Fine

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U.S.P.O., Philadelphia Pa., 1c Gold on Black Glazed (7LB11). Three large to huge margins, clear to ample at right, uncancelled, used with 3c Orange Brown, Ty. I (10), large margins to touching at right, tied by blue "Philadelphia Pa. Aug. 25" (1851) circular datestamp on blue cover to Princeton N.J., from the Meredith correspondence, Very Fine, ex Caspary and Hall

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U.S.P.O., Philadelphia Pa., 1c Blue (7LB12). Ample to large margins, red star cancel, used on folded cover to Boston, blue "Philadelphia Pa. Jan. 18" circular datestamp with attached "10" rate at bottom, matching "Paid" oval, red crayon "10" rate, Very Fine, ex Caspary, with 1990 P.F. certificate

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U.S.P.O., Philadelphia Pa., 1c Black (7LB13). Three full to large margins, clear at right, uncancelled, used on folded cover to New York, red "PHILADA. RAIL ROAD"%$ straightline handstamp and ms. "5" due rate

VERY FINE AND FRESH. THE ONLY USE OF THE BLACK LITHOGRAPHED CARRIER STAMP IN COMBINATION WITH THE RAILROAD ROUTE AGENT'S MARKING. AN OUTSTANDING PHILADELPHIA CARRIER USAGE.

Ex Golden. With 1981 P.F. certificate.

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