@SmithsonianAmHistory
  @SmithsonianAmHistory
National Museum of American History | Hear My Voice: glass disc with photographic emulsion, made November 17, 1885 @SmithsonianAmHistory | Uploaded April 2022 | Updated October 2024, 17 hours ago.
“ba-ro-me-ter.”
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Hear My Voice: glass disc with photographic emulsion, made November 17, 1885 @SmithsonianAmHistory

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