[John Julius Angerstein, connoisseur of the arts whose collection formed the basis of the National Gallery, London, and the rumoured son of Empress Anne of Russia.] Autograph Signature to valediction of a letter.

See his entry in the Oxford DNB. On 13 x 8 cm piece of paper, cut from the end of a letter. The valediction, firmly written in Angerstein’s hand, reading: ‘I am / D. Sir / Your Mt Obt Sert / J J. Angerstein’. First initial of the signature lightly inked. In good condition, lightly aged.