1877 envelope to Cairo bearing intaglio privilege seal of Sofia Hospital, incorrectly stampless for overseas destinations, blue Constantinople Turquie transit cds (12 Dec) and oval-framed ‘T.’, reverse with Poste Egiziane Alessandrie and Cairo date stamps of 18 Dic, front also shows a handstamp “3” postage due charge. Reduced slightly at top with part missing, otherwise clean and attractive.