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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