I found this browsing deviantart, and thought it might be usefull.

Original posts here and here.

Description from the original posts:

This is the weapon list diagram sets for the Mayhem project. Most of these have some historical context, and there are a few minor inconsistencies with historical weapons, but it's comprehensive enough to work for a game list, providing some good ideas, while being simple enough so as to not overwhelm people. I am aware that the slayer and the great cleaver are not historical weapons, they're just really common fantasy styles, and so I thought they had a place.