I watched the hole video Bart and it answered some questions I haves always had about manufacturing gears. Thanks for sharing.?? Dennis
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I first saw this film in a High School Shop Class more decades ago then I care to mention and thought it lost to the sands of time. ?A gal named Fran has a library of these old 16mm films and is digitizing them
Check it out here: ?
-Bart
Scanned by and confirmed virus-free.