Ottoman Empire: 1873 (April). Dulos type 10pa lilac perf. 12 to 13 overprint inverted and inscription reads “bir gurus” instead of “on para” (1pi instead of 10pa) struck by part double box handstamp. Illustrated in the specialised catalogue. Believed to be only recorded. Isfila 81SE63 [RV1], Sg. 49a
