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Old 04-24-2017, 09:40 AM
TriPolar TriPolar is offline
Join Date: Oct 2007
Location: rhode island
Posts: 38,027
Probably an old engineering book my father-in-law had, and it is quite a bit older than he was. It has a diagram showing where to cut the best belts from the hide of an ox and some info on water wheels. Another book on electrical engineering is almost as old yet doesn't seem outdated at all.