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An Edison wax drum sonograph!
May 5, 2013
Erik Bethke
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An Edison wax drum sonograph! Originally posted on Facebook on May 05, 2013.
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An Edison wax drum sonograph!
Originally posted on Facebook on May 05, 2013.
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Published: May 5, 2013 5:44 PM
Last updated: March 7, 2026 1:54 AM
Post ID: f861d7a2-19c7-4d91-89d8-cebf6d7956c2