Large glass window, brass & metal elements. Manufacturer tag.
An antique 19th century telephone switching relay by Kellogg Switchboard of Chicago. Original seven terminal heavy wooden cabinet, each with original manufacturers printing. Original brass, metal and other components, manufacturers plate KELLOGG SWITCHBOARD & SUPPLY COMPANY CHICAGO, IL, NO. 23A. Original inspection tag sticker dated January 15, 1917. Kellogg was an American telephone manufacturer, founded in Chicago in 1897 by engineer Milo Kellogg, and one of the primary suppliers of the nation's telephone equipment until after World War II.
Issued: c. 1917
Dimensions: 18.5"H x 8"W
Manufacturer: Kellogg Switchboard & Supply Co.
Country of Origin: United States
Age related wear
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