Hi Gary,can you put some pics of those horseshoes on.Any cat-eyes in colored glass are more disirable.If you are looking at your cats get "marbles the guide to cats-eye marbles"Marlow Peterson and Larry Castle,it's a small but informative book.Gary it is always good to check out your marbles,you will find something good everytime.
I don't know how many companies have made horshoe cats,I believe these are made by Vitro