Marbles was a very popuilar game on the school ground in the early 1950s here in my home town. No, not 1850's! I was the sixth grade champ and once had several thousand I won playing that forbidden game of "Keeps"! Several kids brought really neat marbles from home that were given to them by their Dads and Granddads. I had several agates, some clay marbles , but mostly glass marblesthat you could buy for about a dime a dozen. I have usually found marbles at house demo sites where I also found toys or parts of toys, just about any household with kids had marbles. Right after a good hard rain on a vacant lot is a good place to find them. The one old purple clay marble I have found dates back to the 1920s and I found it on a vacant lot where a house had burned. There is big $$$ in some marbles but I have no desire to sell any of the ones I have found MDing. Monty