CoolWeldStudiosInc.
Aluminum
- Joined
- Mar 12, 2005
- Location
- Metro NY, USA
The images shown here are of an American Waltham Watch Co. blade bench micrometer. Being that it is chrome plated we would place the date of this micrometer at between the mid - late 1920's to WWII. The disc knob at the left side of the first image is a friction knob. The nonrotating blade spindle is spring loaded against the threaded spindle. The range is 0-10mm. Every revolution of the pointer is 1mm. The dial is divided into 1/100mm increments. We are trying to determine if this micrometer was for sale to the public or a tool for internal company use only.