Circular slide rule with lockable cursor arm
- Made:
- California
Circular slide rule with lockable cursor arm, plastic, in envelope with instructions: " Eckel dial rule", Engineers' Model, made by Lithocalculator Company, Calfornia
Details
Parts
Circular slide rule with lockable cursor arm
Circular slide rule with lockable cursor arm, plastic made by Lithocalculator Company, Calfornia, USA.
- Object Number:
- 1985-276 Pt2
- type:
- circular slide rule
