Fort no. 6 (Jarema Wisniowiecki), until 1920 known as Fort no. 3a (Dohna), built in 1889-93 and in great part destroyed after 1945
Fort no. 6 (Jarema Wisniowiecki), until 1920 known as Fort no. 3a (Dohna), built in 1889-93 and in great part destroyed after 1945 Military - Historic By: piotr_k
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