Internet Horology Club 185
Hypothetically speaking ...
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https://ihc185.infopop.cc/eve/forums/a/tpc/f/1086047761/m/4861045732
March 06, 2007, 21:46
Mark Estep
Hypothetically speaking ...
How would one go about putting a new friction hub in a Waltham balance? Hypothetically speaking.
March 07, 2007, 20:29
Lawrence Fure
You might find the answer
here.
Try page twenty five.
Larry