Starrett No. 64 Universal Test Indicator
I've seen only a few of these over the years, and they still remain a sought after precision indicator! The indicator has been checked and verified to be in good working order, no wear noted, It is clearly marked "THE L.S. STARRETT CO. ATHOL MASS. U.S.A. No. 64" on the indicator. This model is design to attach to a surface gauge round rod, or even a lathe tool, as is basically has large, sturdy washer like, clamp jaws that squeeze the rod tightly and hold the indicator in place just fine. This is a very nice, hard to find model from the 1920's-50's era!