Item RB3 - Stanley No. 21 Combination Square.

This combination square featured a slotted blade that made the head captive to it, and mostly eliminated the problem of a missing blade or head. This example is in the scarce 9 size (it came in 6, 9, and 12 sizes). An early one, it is marked with the 1911 patent date and SW mark. This 9 size did not have the scratch awl and level bubble of the 12 size. It is without finish, but is generally clean, with a few tarnish spots, but no rust or pitting. The graduations are easy to read. Good+

  Price - $15.00

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