

3ft wooden steelyard with iron mountings for double fulcrum and goods hooks, and sliding iron ball counterpoise; probably on "Wool-Tron" of 16th century. Graduated from 35-280 Troy lb.
3ft wooden steelyard with iron mountings for double fulcrum and goods hooks, and sliding iron ball counterpoise; probably on "Wool-Tron" of 16th century. Graduated from 35-280 Troy lb.