Goodell Pratt Breast Drill Question

Hi all! I have a breast Drill that looks exactly like a #6 Goodell Pratt breast drill, the paint is gone and there is a bit of rust. I cannot find the name Goodell Pratt anywhere on the tool, is that common, did they just paint their name on this vintage or make them unmarked for other sellers? Any way to prove it is a Goodell Pratt?
Thanks
Mark

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Goodell Pratt Breast Drill Question