This piano has been in the family for many years and was built in the 1920's. Here is more information on the brand.
The Cable Piano Co. was established in 1880 by H.D. Cable. H.D. Cable was originally with the Wolfinger Organ Co., which later changed to the Western Cottage Organ Co. and then to the Chicago Cottage Organ Co. In 1890, H.D. Cable consolidated with Conover Bros. and his two brothers, Fayette S. and Hobart M. Cable (although Fayette S. and Hobart M. Cable continued building pianos under their own brand names). Cable and Conover then acquired the Schiller Piano Co. of Oregon, IL , and used the Schiller pianos as their higher end models. By the 1900s, Cable had two factories in Illinois (Chicago and St. Charles) and manufactured pianos under the names: Conover, Cable, DeKoven, Kingsbury, Midget, Puritan, Wellington, Schiller; also made Euphona, Carola and Inner-Player player pianos. "Tonarch" and "Crownstay" were trademarks of the Cable Piano Co. (involving soundboard patents). Other owners of the firm included Jackson & Wabash of Chicago; Winter & Co. and ultimately, the Aeolian Corp. of New York until about 1982. Pianos were manufactured in Memphis, TN during Aeolian's ownership. The original firm is now out of business. In 2001, Gibson Guitars acquired the Cable name when they purchased Baldwin.