Old Clay Marbles - Browns and Grays

I'm not over my obsession with old clay marbles in all their variations, and am adding a few new sets of what I believe are quite old ones. This batch includes one Bennington, and las a whole looks to me like a beautiful bunch of smooth round stones. So lovely.  About 50 marbles--exactly as shown. These average about 1/2" in diameter, some a little bigger, some a little smaller. I've tried to weed out any with much damage, but certainly there are a few little chips here and there.