Gros ouvrage de Fermont: the blocks 4 and 7. The later is a flanking infantry casemate with two twin MGs, a 47 mm AT gun, a LMG, a cloche GFM and a cloche LG. Block 7, in the background, is a large artillery casemate armed with three 75 mm guns model 1932. For more information take a look at www.maginot.info.