Ottoman Turkey: 1916 (16 August). Max Grünberg imprinted registered cover to Budapest, Hungary franbked with war time overprinted pair of 1pi for registered letter rate and 10pa war orphans tax tied by Stamboul datestamp, #2 censor cachet and Austro-Hungarian red Semlin (now Zemun, Serbia) censor handstamp. Reverse same day depart cds and red rosette censor label.
