A quick scan of my one tool boxes yielded a few pieces with late 1800 patent dates. I'm not sure if I have anything older; I might but the thing is locating them and finding the applicable dates for patents or manufacturing.
First is a Hudson's Improved Speed Indicator marked '*Woodman's Patent* SEPT 12 1876'. These were manufactured by R. Woodman Mfg. & Supply Co. and sold by the J.W. Mixter Saw Tool Co. in their 1889 catalog.
Next is a Starrett combination square with a protractor that has a patent date of Aug. 7 1883. The square has a forged and hardened head and blade as well as the protractor. The center head appears to be cast. My guess is that the center head was a later addition to the set. All pieces have the original owner's initials etched in them. My earliest Starrett catalog, No. 17, does not show this style of protractor. I can only surmise that this style protractor was no longer in production as of the date of the catalog, which is 1900.
A machinist made hardened and aground solid square stamped 1890 with the owner's name etched in it is next. I can only assume that the 1890 is the year that it was made from the story behind it....can't really prove it based on hard facts of patents and manufacturer's history.
Sawyer Tool Mfg. Co. Of Fitchburg, Mass. is fourth with a compound bevel. It has a patent date of July 25, 1893. Sawyer Tool moved to Fitchburg from Athol in 1898. They then moved to Ashburnham in 1912.
Finally is a Stanley machinist's level. It is marked STANLEY PAT 6-20 96. No model number is on it, but at 6" in length it appears to be an early version of the 39-1/2.







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