Comments by "Vikki McDonough" (@vikkimcdonough6153) on "Introduction to Proof Marks and Other Firearms Identification (1880-1945)" video.

  1. Question: How did Spain handle firearms proofing during the Spanish Civil War? Presumably the two sides weren't agreeing to joint custody of the proof house...
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  2.  @allangibson2408  And .22 Extra Long, .22 BB, .22 CB...
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