Union Square Post Office, New York N.Y., 1c Black on Green, Apple Green, Rose (141L1-141L3). Small mounted group of stamps, includes 13 of 141L1, one 141L2, two singles, blocks of four, eighteen and 42 of 141L3, faults in some singles, overall Fine

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Union Square Post Office, New York N.Y., 1c Black on Light Apple Green (141L2). Large margins to just touched at right, used with 3c Brownish Carmine (11), ample to large margins, neatly placed at opposite corners of cover to Chicago Ill., each stamp tied by "New-York Nov. 10" circular datestamp, with original letter from Elizabeth Blackwell (reputed to be the first female physician in America) datelined Monday evening, Nov. 8 (must be 1852), Extremely Fine, a very choice tied usage -- although other covers are known with this local tied together with the 3c 1851, this is unusual because the datestamp was struck a second time to cancel the Union Square stamp, ex Abt

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Union Square Post Office, New York N.Y., 1c Black on Dark Green (141L1). Large margins to touching at right, uncancelled, used on cover to New York City street address, 3c Dull Red (11), ample margins to touching, tied by "Fergunsonville N.Y. Nov. 11" double-line circular datestamp, an unlikely but not impossible usage -- offered on its own merits

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Union Square Post Office, New York N.Y., 1c Black on Light Apple Green (141L2). Cut to shield shape, ms. cancel (not tied), used with 3c Brownish Carmine (11), ample margins to in at top, tied by "New-York Aug. 18" (ca. 1852) circular datestamp on small cover to Madame Schuyler, Dobb's Ferry N.Y., Very Fine and choice

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Union Square Post Office, New York N.Y., 1c Black on Light Apple Green (141L2). Cut to shield shape, ms. cancel (not tied), used with 3c Brownish Carmine (11), large margins to slightly in, tied by "New-York Sep. 20" circular datestamp on buff cover to Elizabethtown N.J., 1852 docketing, couple faint edge stains, Fine

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Union Square Post Office, New York N.Y., 1c Black on Light Apple Green (141L2). Large margins to just in, uncancelled, used with 3c Dull Red (11), ample margins to touching, tied by "New-York Jan. 3" circular datestamp on small narrow cover to Charleston S.C., backflap removed, Fine

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Union Square Post Office, New York N.Y., Balance of Covers. Five covers and one front, three with 141L1 Dark Green (one cut to shape), one cover and a front with 141L2 Apple Green, and a Valentine cover with part of red oval handstamp, faults, scarce group from the Abt collection

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Dunham's Union-Square Post-Office. Red oval handstamp on inbound transatlantic cover from England, Great Britain 1sh Green Embossed stamp cut to shape, tied by "13" oval grid, Jun. 7, 1850 backstamp, red "Br. Packet Jun. 24 Paid 24" circular datestamp, red "5 Cents" credit, pencil "27 5th Ave." street address provided by Dunham, with letter enclosed, minor gum toning, Very Fine and unusual Dunham's usage

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Dunham's Union-Square Post-Office. Red oval handstamp on blue Dec. 1850 folded letter to local street address, Very Fine

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Dunham's Union-Square Post-Office. Red oval with matching "Paid" in oval on Feb. 26, 1852 printed notice to local street address, Very Fine

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Dunham's Union-Square Post-Office. Partly clear red oval with matching "Paid" in oval on part-printed invition to local street address, Fine

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