{"product_id":"very-unique-and-rare-all-original-late-19th-century-the-knapp-ornamental-cast-iron-commercial-building-elevator-signaling-system-and-or-annunciator","title":"very unique and rare all original late 19th century \"the knapp\" ornamental cast iron commercial building elevator signaling system and\/or annunciator","description":"seldom found and exceptionally well-maintained original heavy ornamented cast iron wall-mount early commercial building or hotel elevator signaling system and\/or annunciator designed and fabricated by knapp electrical works for the central electric company, chicago, il. the two-part hinged signaling device was commonly advertised as \"the knapp\" by a number of manufacturers during the 1880-1890's. the units varied in size, material and configuration. the most commonly found annunciator systems were typically used in residential settings and were comprised of a wood body or enclosure. the more commercial heavy duty plated-metal enclosures are much harder to come across. the built-in bell or ringer is original and intact. the glass pane protecting the black enameled panel containing the floor levels with their respective indicator arrows is surrounded by a nicely aged bronze metal border with a repeating egg \u0026amp; dart design motif. the mechanical components remain nicely preserved within the enclosure. the copper-plated iron exterior has been cleaned and sealed with a clear coat finish. measures 4 1\/8 x 14 1\/2 x 3 1\/2 inches.","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":50671063597354,"sku":"UR-21363-14","price":950.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/7075\/4858\/files\/20141212-008c_2.jpg?v=1760406888","url":"https:\/\/urbanremainschicago.com\/products\/very-unique-and-rare-all-original-late-19th-century-the-knapp-ornamental-cast-iron-commercial-building-elevator-signaling-system-and-or-annunciator","provider":"Urban Remains Chicago","version":"1.0","type":"link"}