If it's not a model 21, how would I find out what model it is? If you look a couple posts down there are some pics from someone else that looks almost identical to mine. His shows a 42 where mine is a 43. It has the same mint mark as mine. Also his has butter knife handle and mine is bolt. If you look in post below his, the pics there are mine listed by another since I couldn't get them to load from my computer.