{"product_id":"wwii-bell-telephone-laboratories-portable-information-center-master-index-es-800515","title":"WWII Bell Telephone Laboratories Portable Information Center Master Index ES-800515","description":"\u003cp\u003e\u003cspan\u003eOriginal \u003c\/span\u003e\u003cspan\u003eBell Telephone Laboratories, Inc. Portable Information Center Master Index\u003c\/span\u003e\u003cspan\u003e, publication \u003c\/span\u003e\u003cspan\u003eES-800515\u003c\/span\u003e\u003cspan\u003e, housed in its original black binder.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe spine label identifies the binder as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eES-800511-7 – Intercept Frequency Circuits, Wiring Diagrams, Cross-Connections \u0026amp; Maintenance Information\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe master index describes a multi-folder portable communications system containing technical documentation for telephone facilities, terminal radio frames, PBX equipment, amplifiers, engine-alternator equipment, handsets, tools, spare parts and related maintenance material. The issue table on the title sheet is dated \u003c\/span\u003e\u003cspan\u003eMarch–April 1942\u003c\/span\u003e\u003cspan\u003e, placing the documentation in the early World War II period.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBell Telephone Laboratories played a major role in wartime communications, radar and electronics development, adding historical interest to surviving technical documentation of this type.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eItem Details\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eOrganization:\u003c\/span\u003e\u003cspan\u003e Bell Telephone Laboratories, Inc.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eTitle:\u003c\/span\u003e\u003cspan\u003e Portable Information Center—Master Index\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003ePublication number:\u003c\/span\u003e\u003cspan\u003e ES-800515\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eRelated binder number:\u003c\/span\u003e\u003cspan\u003e ES-800511-7\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eDates shown:\u003c\/span\u003e\u003cspan\u003e March 9 and April 1, 1942\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSubject:\u003c\/span\u003e\u003cspan\u003e Intercept-frequency circuits, wiring diagrams, cross-connections and maintenance information\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eFormat:\u003c\/span\u003e\u003cspan\u003e Large technical-document binder\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eEra:\u003c\/span\u003e\u003cspan\u003e World War II\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCountry:\u003c\/span\u003e\u003cspan\u003e United States\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFREE SHIPPING\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e#5\u003c\/span\u003e\u003c\/p\u003e","brand":"Whiskey Rebellion Antiques","offers":[{"title":"Default Title","offer_id":43335146012749,"sku":null,"price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/9229\/8829\/files\/IMG-1111.heic?v=1785504563","url":"https:\/\/whiskeyrebellionantiques.com\/products\/wwii-bell-telephone-laboratories-portable-information-center-master-index-es-800515","provider":"Whiskey Rebellion Antiques","version":"1.0","type":"link"}