VINTAGE ANTIQUE MARBLES

My grandfather was an avid marble collector and spent most of his time searching them out. He passed a few years ago and left me some of his marbles, and while searching through the internet, I have begun to understand the value they hold as well as how difficult it is to differentiate between all the different marbles! None of these marbles are completely spherical, and he said they were all from the beginning of the century, if not older. They are about a half inch in size, give or take a few millimeters. I do not have a black light, but my grandfather was constantly displaying them to his friends with one. 

 

I have attached images of the ones I have and would appreciate any help you might be able to give .