3c Dull Red, Ty. III (26). Two covers, both with "New-York" Norton-patent grid duplex with '61 year slug vertically at side of month and day, first dated "Feb. 11", second "Mar. 5", on folded letter to Richmond and on cover to Woodstock Vt. respectively, first also with "Brown Bro's & Co. New York" double-oval handstamp on reverse, Very Fine, second with perfs in at left and light filing crease thru stamp, a scarce pair of covers with this duplex, used only from Jan. 22-Mar. 28, 1861

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