A tughra is a calligraphic seal or signature of an Ottoman sultan that was affixed to all official documents and correspondence. It was also carved on his seal and stamped on the coins minted during his reign.
Misty Istanbul Bosphorus , originally uploaded by voyageAnatolia . Ferry boat at Bosphorus heading to Golden Horn, Istanbul in the mist, in breakwater corridor of Haydarpasa Pier between lighthouses.