I did some small research and it seems to look like a Swedish m37/65 but it is not grey and doesn't have the Swedish crown decals. Can somebody authenticate this helmet? :
Post WW2 Swedish M37/65 Helmet And M60 Helmet Net Camouflage Cover
Helmets of the World: Swedish M37 Steel Helmet - YouTube
My Swedish m37 helmet with marking 72 on it : r/Militariacollecting
Sold Price: WW2 Swedish M37 Helmet - Invalid date MDT
Military Antiques and Museum - - ZWH-0011 WWII Era Swedish M37 Helmet - $59.95
WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
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WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
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M1937 helmet (Sweden) - Wikipedia
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Helmet Ballistic Test: Swedish M37/65 Steel Helmet. The One Where Mike Gets Shot.... - YouTube
Swedish M37 Military Steel Helmet Vintage Nice Decals ‼️inside Liner Missing‼️ | eBay
WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
