[Bunkers] Lot with 3 publications by Rudi Rolf

Bunkers in Nederland, Den Helder, 1982, 155 pp. + Het Duitse Fortificatie-ontwerp 1935-1945, Beetsterzwaag, 1985 + Der Atlantikwall. Perlenschnur aus Stahlbeton. 1983, 222 pp. All 3 published at AMA, with dust jacket.