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Look carefully at the indicated area in the photo below...
![Office ruler Wood Gas Motor vehicle Fixture]()
You can see that the left side of the slide was heavily machined/polished down so far that the original roll marks were removed. Note the radius where the tool was stopped before getting into the serrations.
You can see that the left side of the slide was heavily machined/polished down so far that the original roll marks were removed. Note the radius where the tool was stopped before getting into the serrations.
