cover 1868 (14 Apr.) envelope to Philadelphia, marked "via England", bearing 3c. on 1a. pair, 24c. on 8a. rose and 2nd. issue 12c. blue, all tied by Singapore "D14" duplex, showing red crayon "1/8", London Paid (18.5) transit c.d.s. and "3/CENTS" accountancy h.s. A very rare and highly attractive mixed issue franking. Photo