Oranje blik (verzegeld) tbv Nederlands civiel gasmasker, Model III (1939-1940) Twee Nederlandse civiele gasmaskers met één filterbus verpakt in gasmaskertas met toebehoren (1939-1940) tbv luchtbescherming (?) Nederlands civiel gasmasker, Model III (1939-1940) Oranje blik (verzegeld) tbv Nederlands civiel gasmasker, Model III (1939-1940) Schuilstad : bescherming van de bevolking tegen luchtaanvallen / Koos Bosma ; [fotogr. Anja de Jong ; tek. Cyane Conijn] Survey of industrial objectives in the Netherlands (east) Indies : prepared for the industrial objectives division, board of economic warfare / by Jesse F. van … Front line 1940-41 : the official story of the civil defence of Britain / issued for the Ministry of Home Security by the Ministry of … Soldiers and Civil Power : Supporting or Substituting Civil Authorities in Modern Peace Operations / Thijs W. Brocades Zaalberg
