The world's first Bridgeport mill, serial number S38-001. On display at the American Precision Museum in Windsor, Vermont.
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More:
http://www.americanprecision.org/
https://en.wikipedia.org/wiki/American_Precision_Museum
Previously:
https://www.homemadetools.net/forum/...386#post154566
https://www.homemadetools.net/forum/...988#post120133
https://www.homemadetools.net/forum/...015#post160566
https://www.homemadetools.net/forum/...459#post142768
https://www.homemadetools.net/forum/...145#post141459
https://www.homemadetools.net/forum/...6425#post83639
https://www.homemadetools.net/forum/...033#post137891
https://www.homemadetools.net/forum/...576#post123136