Catalogue
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Replica Morse Key, Late 20th Century
Inventory Number: 44566
Number of documents: 1
Document Type: Miscellaneous Note
Document Heading: Historical Background
Text:
This is a replica of the Morse key used by Marconi during his experiments at the Haven Hotel, Poole leading to the development of his specification for tuning which resulted in the 'Four Sevens', 7777 Patent of April 1900.
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