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Western Electric Switchboard Head Set Volume Control Bell System SWBD Adapter $5.99 USD Sold on: 2017-Feb-25 Marketplace: eBay  1 Treasure 0 Trash   100% Detail:Up for auction is a Western Electric Switchboard Head Set Volume Control Bell System SWBD Adapter. This was used on Switchboards/Test boards to increase the volume on a Head Set or Hand Set. You plug ...  More Relevance Historical Items |
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