Since I'm posting here now, Transitional 'M23' Adrian - probably used by the Spanish during their civil war (elaboration in captions) : r/Militariacollecting
Denmark M23/39 - Brendon's Helmets
WW2 Pre German Occupation Danish M23/39 Civil Defense Helmet And Liner
Danish M23 Steel Combat Helmet, retaining much of its original dark brown paint finish. Crowned b
WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
Philip's Military Helmets - Highly interesting photo of the British rolling into Denmark, 1945, with Danish resistance members in the foreground. If one looks closely at the helmets that the Danish resistance