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Old 01-24-2021, 07:46 PM
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Default What is it?

Got this with some tools I bought today

Not sure what it is....
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Old 01-24-2021, 08:13 PM
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Something very expensive back in the day but today worth nothing

Interesting, but I have no idea
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Old 01-24-2021, 08:51 PM
Lowe.Buuck Lowe.Buuck is offline
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United States Patent 2350394
https://patentimages.storage.googlea.../US2350394.pdf

Later Patent
https://patentimages.storage.googlea.../US3238626.pdf

One sold on Ebay
https://www.ebay.com/itm/Ellstrom-Internal-Setter-Gage-Bore-Gauge-Setting-Master-Dearborn-Gage-Co-USA
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Old 01-24-2021, 10:27 PM
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Ohhh

So it's for setting bore gauges. Interesting stuff.
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