Belgian patent relating to the Nagant 1878 revolver. Claims of the Belgian Nagant patent #42907 of 1877. Detachable hammer firing pin. Dismountable ratchet. Cover plate arrangement. Trigger guard used a mounting tool for the springs. First Nagant revolver Model 1878 in 9. 4mm caliber. Corresponding US Patent #226. 923 dated April 27, 1880.
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