Old 5-string, don't know what kind????????? need help.

I have a 5-sring banjo that ws given to me by my dad. It was my grandfathers. I would iket know the name of the maker of the banjo. It has no name, no numbers, nothing that I can tell who, where, or when it was made. I would really like to know as much as possible. I hope someone can tell me. Thank you.