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On an aerial photo from 1951, Olsvik looks very similar to the area as described in an intelligence report from 1944:
41 -
42 -
43 -
44 -
45 -
46 -
47 -
48 -
49 -
50 -
By 2005 the area had been developed, but some of the gun positions were still visible. The officer's barrack (no. 49 in the list above), also seemed to have survived.