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'Marconi' Auto-Alarm Selector Type 333, by Marconi Company, London, c. 1920
Inventory Number: 22770
Number of documents: 1
Document Type: Miscellaneous Note
Document Heading: Manufacturer Details
Text:
Unusually for such a device, this was made by Marconi's Wireless Telegraph Co. Ltd., rather than the Marconi International Marine Communication Co. Ltd., which suggests it was made for a naval installation.
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