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Eavesdropping
Cornell University Library Digital Collections
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Collection
Early 20th Century Engineering Lantern Slides
1
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Image
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unknown
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line blocks
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unknown
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speaking trumpet
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Eavesdropping
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1
sound amplification
1
Repository
Division of Rare and Manuscript Collections, Cornell University Library
1
Archival Collection
Sibley School of Mechanical and Aerospace Engineering records, 1917-2009
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Transfer of skill
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1.
Athanasius KircherÃs speaking trumpet for broadcasting
Collection:
Early 20th Century Engineering Lantern Slides
Set:
Transfer of skill
Location:
unknown
Date:
1650
Format:
Image
Agent:
unknown
