Help identifying weapons from 1905-1935

I have a collection of items that were confiscated by our local sheriff between the years of 1905-1935. I am looking for someone that may be able help me identify them. I know that some are brass knuckles and knives, but would like help with exact names. There are also some that I cannot identify at all. Many are handmade and may have been made while behind the jail walls. I will post pictures if there is someone willing to take the time to help. Unfortunately the items are in a box with glass panel on front and pics are not great.