50 Lira Ahırkapı Feneri

The Ahırkapı lighthouse, built in 1857 on the European shore of the Bosphorus near Istanbul, was one of a series of Ottoman-era navigational structures commissioned following increased steam traffic through the strait. This coin belongs to Turkey's long-running lighthouse commemorative series, which the Central Bank used to draw attention to endangered or historically significant maritime infrastructure along Turkish coastlines.

The Ahırkapı light was decommissioned and fell into disrepair before restoration efforts in the 2000s — the timing of this issue tracks closely with renewed public interest in its preservation.