cover 1851 (Jan.) E.L. "Per "Tenasserim via Calcutta" and "via Southampton" to Madeira showing, on reverse, boxed "KYUK PHYOO/Paid" h.s. in red (a good strike overwritten by filing endorsement); the letter was not initially prepaid and shows boxed "N/SO /Detained for Postage" and framed "Returned/for Postage" instructional h.s. in red applied in London, along with other transit and rate markings. Rare and full of character. Photo.