I'm offering a pair of dry process pin bases that look like early THOMAS production. This is the first time I've run across this style. Both are 6 1/8" tall, with the base dia. being 3 1/2" and 3" respectively. The larger of the two has a "birthmark" on one side. The smaller one has several nicks and flakes. The CD 121 is in the photo for size comparison. Asking $20.00 for the pair plus postage. Thanks for looking!