Wisconsin Parts Database Instructions and Discussion Team/Group > ILLINOIS
> Motors and tools
> Remove
> Used
> Nut + bolt metal corrosion calculator guide lot
Nut + bolt metal corrosion calculator guide lot
Nifty vintage two lot of cardboard pull-out style calculators. These two specifically designed as advertising gimmicks for Nut and Bolt manufacturers.
A 6in tall Elastic Stop Nut Corporation of America,, NUT SELECTOR guide. Union New Jersey c.1965.
and H M Harper Company, COMPUTER OF CORROSION RESISTANCE. Morton Grove, Ill, not dated.
