Infantry casemate bunker concrete fortress pillbox “V.b/87/C” řopík near Chomutov,, Czechia part of the Kočičák museum http://www.kocicak.cz
Former part of Czechoslovak border fortification built in 1930’s, now under heritage protection. http://www.fortif.net/files/overview.php
Photogrammetry scan (350x24MP DSLR + drone by https://sketchfab.com/kubacpetr )
Available to download for free, easy to 3D print as well.
CC AttributionCreative Commons Attribution