![File:GM.034951-2 Hjelm Military helmet British Brodie M1916 Hæren Norwegian Army Tysklandsbrigaden Liner straps (polstring festereimer). Anno Glomdalsmuseet Norway Digitaltmuseum CC BY-SA 4.0.jpg - Wikimedia Commons File:GM.034951-2 Hjelm Military helmet British Brodie M1916 Hæren Norwegian Army Tysklandsbrigaden Liner straps (polstring festereimer). Anno Glomdalsmuseet Norway Digitaltmuseum CC BY-SA 4.0.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/c/cf/GM.034951-2_Hjelm_Military_helmet_British_Brodie_M1916_H%C3%A6ren_Norwegian_Army_Tysklandsbrigaden_Liner_straps_%28polstring_festereimer%29._Anno_Glomdalsmuseet_Norway_Digitaltmuseum_CC_BY-SA_4.0.jpg)
File:GM.034951-2 Hjelm Military helmet British Brodie M1916 Hæren Norwegian Army Tysklandsbrigaden Liner straps (polstring festereimer). Anno Glomdalsmuseet Norway Digitaltmuseum CC BY-SA 4.0.jpg - Wikimedia Commons
![Book. Hjelm P. J., Berättelse... (The history of the Swedish porphyry factory), C. F. Marquard, Stockholm 1802. - Bukowskis Book. Hjelm P. J., Berättelse... (The history of the Swedish porphyry factory), C. F. Marquard, Stockholm 1802. - Bukowskis](https://d2mpxrrcad19ou.cloudfront.net/item_images/398035/8645952_fullsize.jpg)
Book. Hjelm P. J., Berättelse... (The history of the Swedish porphyry factory), C. F. Marquard, Stockholm 1802. - Bukowskis
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