I believe it is Brown and Sharpe manufacturing Co. which manufactured machine tools and screw machines. The large "L" is actually a machinists square with the "BS" as part of their logo.
Don't feel bad, I've made similar mistakes a few times on this site as well. The solution is to mark the stamp or cover with the information and I'll admit I don't always do that either (even though I should).
The perfin is still quite interesting and clever with the company using a "machinist's square" as part of the perfin design.
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Posted 10/30/2015 1:08 pm
