All of these drums are Ludwig models from the 60's & 70's. I had Bucyrus Cooper Kettles remove the dents and do the re-lacquering on 4 drums. Then the small 20" became available, and although I would most likely never have a use for such a small drum, I bought it anyway and sent it out for re-lacquering. I then replaced all the balanced action springs in all the bases. A set of 5 Universals; all re-conditioned an re-lacquered. With the help of my friend Glenn Rhiann, we re-engineered the Planet Percussion gauges on the drums. 20" 23" 25", 28", & 30".