Los 68
10 d. blue on thin paper with good to large even margins, tied by light numeral "16" to envelope with clear adjacent "HAMILTONÂ MAYÂ 11 1857" to London with red paid-marking on front, very fine, certificate BPAÂ (1995) Provenance: Charles P. de Volpi Warren Wilkinson (2007) Joseph Hackmey (2011)