Dugit, Cool marbles! We sometimes find the small clay ones with Indian artifacts here in southeast TN. Don't know, surely someone out here does, but I'm thinking trade marbles? There was one huge marble plant in Atlanta, GA. that made marbles for quite a while before the "Civil War', but when Gen. W.T. "Pyromaniac" Sherman came through he had it torched. (Can't have those evil Southerners manufacturing marbles to shoot at us!! HAHA!) Actually, they were considered quite rare and went for prices upward of 500.00 for certain colors! I add this because the big one in your collection looks like one!? Can't remember the name of the plant, but when the Olympics were held there, some of the land cleared was the site of the factory and I was told by a collector in Chattanooga, TN. that nearly 250,000 were found scattered about!! Needless to say the market took a quick plummet in the old marble scene, as they go for about 3-10 dollars now! Just thought you might find this interesting. Great finds! Good luck and great hunting! Regards, skypilot02 (Richard)