Photo 3755-05: Armored cupola of an experimental observation...Coastal Fort "Reef", Kronstadt, Russia

Armored cupola of an experimental observation post, built in 1891. This was part of the "Engineer Polygon" tests to see how well concrete structures combined with armor could withstand enemy fire. Coastal Fort "Reef", Kronstadt, Russia

🎞️ #3755-05

📅 Sat September 27, 2025

📍 главное здание форта «Риф», Кронштадтское шоссе, Кронштадт, Санкт-Петербург, Северо-Западный федеральный округ, Россия

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