Constantinople / Istanbul, TURKEY - Entrance to the Black Sea - masted ships For Sale

Constantinople / Istanbul, TURKEY - Entrance to the Black Sea: Constantinople, modern-day Istanbul, is uniquely divided by the Bosphorus Strait, the strategic 17-nautical-mile waterway that serves as the only maritime gateway connecting the Black Sea to the Mediterranean via the Sea of Marmara. This natural boundary splits the city into European and Asian sides and features an incredibly rich geopolitical and cultural history.- The Gateway: The northern opening of the Bosphorus meets the Black Sea, marked by historical lighthouses such as the Rumelia Feneri on the European side.- Dimensions: The strait is famously narrow, measuring about 30 kilometers (19 miles) long and narrowing to just 700 meters at its tightest point, forcing heavy global maritime traffic to navigate directly past the heart of the city.- Global Significance: Serving as the lifeline for Black Sea nations like Russia and Ukraine, the strait handles over 40,000 vessels annually. Its transit is strictly regulated by the 1936 Montreux Convention to manage military and commercial access.- Geography and Crossings: You can cross between the continents using multiple massive suspension bridges (such as the Bosphorus Bridge) or underwater transit like the Marmara Tunnel.This Divided Back Era (1907-15), postcard is in good condition. E. F. Rochat. Constantinople. No. 90.