Comments by "Roger Scott Cathey" (@rogerscottcathey) on "Robertson, Phillips, and the History of the Screwdriver" video.

  1. Couldnt find a single photo of a Robertson screw or driver?
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  2. I meant on the video:-0
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  3.  @TheHistoryGuyChannel  : Ah yes, the copyright issue. Appreciate your conscientiousness and candor.
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