{"product_id":"original-u-s-wwii-signal-corps-bd-57-a-switchboard-morris-code-trainer-by-cook-electric-company-dated-1942","title":"Original U.S. WWII Signal Corps BD-57-A Switchboard Morris Code Trainer by Cook Electric Company - Dated 1942","description":"\u003cp\u003eOriginal Item: Only One Available. This is a near mint condition, WWII manufactured BD-57-A switchboard by Cook Electric Company of Chicago, Illinois. Overall the switchboard measures \u003cstrong\u003e24 x 8 x 10\"\u003c\/strong\u003e when fully closed.\u003c\/p\u003e\n\u003cp\u003eThe data plate on the top reads:\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eSIGNAL CORPS U.S. ARMY\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSWITCHBOARD BD-57-A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eDESIGNED AT SIGNAL CORPS LABORATORIES\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eFORTH MONMOUTH NEW JERSEY\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSERIAL NO. 125 ORDER NO. 3010-PHILA-42\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMADE BY\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eCOOK ELECTRIC COMPANY\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eCHICAGO ILLINOIS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe order number indicates the year of manufacture as \u003cstrong\u003e1942\u003c\/strong\u003e. The front of the switchboard has a large board that can be taken off by pulling the metal tabs, revealing a large switchboard diagram on the back. We have no way to test its functionality, but it appears in great condition for its age. In our research we believe it to be a Morse Code trainer. This was one of the components for the code practice equipment EE-81, a classroom Morse code practice set for training up to 20 operators under an instructor.\u003c\/p\u003e\n\u003cp\u003eThis is an excellent example that comes ready to display!\u003c\/p\u003e\n\u003cp\u003eWe have not tested the functionality of the switchboard, but we do not see why it could not be restored to working order.\u003c\/p\u003e","brand":"Original Items","offers":[{"title":"Default Title","offer_id":42175371935813,"sku":"ONSV24OFS085","price":350.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1524\/1342\/files\/ONSV24OFS085__11.jpg?v=1737782488","url":"https:\/\/www.ima-usa.com\/products\/original-u-s-wwii-signal-corps-bd-57-a-switchboard-morris-code-trainer-by-cook-electric-company-dated-1942","provider":"International Military Antiques","version":"1.0","type":"link"}