Highly collectible and rare Henry Troemner Bowling ball scale (model # 9558) c. 1920s-30s. with the counter weights which are hard to find or get lost. This scale is a great piece of bowling history and before the amf and kaufmann scales to weigh bowling balls. This scale is in excellent condition for its age and has a beautiful patina from the years of use. It is made from brass and steel construction and I believe the base may be of Iron. It would make an excellent addition to a bowling hobbyist's collection. The original counter weights are included, 1- 8lb, 2 - 3lb, 1- 1lb. Online info on the Troemner bowling scale: Troemner manufactured many different models of scales. Scales by the company are highly valued by collectors, bowlers and bowling alleys as they were some of the finest scales ever made. Bowling Ball scales by the company are hard to find especially with a complete set of weights. Troemner listed these scales in scale catalogs from 1926-1930 and may have offered them for several years after that.