Don Hallock has provided this for the education of everyone, three pages of suffixes to help the new collectors and the old when they see one.
ALSO, I made these photgraphic examples 3 or 4 years ago, it needs updating but is still helpful...
http://www.lugerforum.com/Suffixes/Suffixes.htm
Open them, then right click and save to a folder on your computer. or right click, then Print and ensure it prints full page...