I've just acquired what I believe to be a Spanish Civil War Mosin Nagant 91/30. It is a Tula, 1935, non-refurbished with wire sling hangers. My question is about the mismatched bolt. Its short handle has been bent down a little. I wonder if anybody has ideas as to how this came to be. Either by Spanish armorer, a previous owner, of if it is s sign that it is not Spanish. Thanks!