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Title: The Lever Escapement - A Guide to the Many Variations of this Crucial Element of Clock Work, Author: Anon
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The Lever Escapement - A Guide…
by Anon
Paperback $16.99
Title: The Ben Franklin Book of Easy and Incredible Experiments: A Franklin Institute Science Museum Book, Author: Franklin Institute Science Museum
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The Ben Franklin Book of Easy…
by Franklin Institute Science Museum
#1 in Series
Paperback $19.00