Hand-thrown Earthy Stoneware Tumblers - Set of 4

I think it's pretty hard to beat a kitchen stocked with earthy speckled stoneware, which I at least associate strongly with the 1970s and feel somehow both more healthy and more interesting eating on and drinking from!  These tumblers feel great to hold, and I would use them from morning to night (coffee to tea to wine to toddy), plus as each is a bit different, everyone in a family of up to four could claim their own! Really lovely, and just good. 

Signed on the bottoms but I can't make out the signature. All are in great shape, no chips or cracks or other flaws at all that I can see. Sizes range from 4 1/4" to 4 5/8" tall and 2 7/8" to 3 1/8" in diameter. Sold as a set.