I saw this at auction and loved it. Didn't know what it was, but loved it anyway. I just spent an hour on google (okay I do get distracted and I am not all that tech savvy) trying to find out what it was called. After much searching, I found out it was called a speed indicator. Now, I am not sure exactly what that means, but I read that it was used to count RPM's on small motors. I don't know. So, as I am putting the pictures up for you to see, I notice on the end of the original box it says "No. 104 Starrett Speed Indicator The L.S. Starrett Co., Athol, Mass., USA". Had I only looked. On the piece itself, it says Pat. March 28, 1905. It has two bits with it. The box is well worn, but in tact. The indicator is in good shape no rust. It is made of metal, probably steel. The dial in excellent condition. It is about 5" long.
This is a great piece for the antique tool or machinist tool collector.
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