15L5, D.O. Blood & Co., Philadelphia, PA, 1845 (2c) Black, tied by manuscript "X" on local folded cover, "City Despatch D.O. Blood & Co. 2 Cts." double circle handstamp at left, stamp with small margin nick at top from manuscript cancel and cover quite wrinkled, not listed in Dr. Vernon Morris's census of the issue (Penny Post Vol. 22, No. 1) which records only four covers with the stamp tied amongst 54 known examples, fine and rare thus, 2022 Philatelic Foundation certificate erroneously calling the stamp 15L3 (Scott $800 for untied)