The Chicago Hardware Manufacturing Co., originally based in Chicago, IL, and later Niles, made its mark from 1878 to 1913. After a change in ownership in 1907, it dropped the "Niles" reference and transformed into the Sager Lock Company by 1913. This transformation marked the culmination of the company's impactful history. This concentric door knob was made by Niles/Chicago in the 1895 catalog. It is part of the M-14500 group. One available. The dimensions are 2.25 in. diameter x 3 in. D .