group of three original early 20th century salvaged chicago interior administration building doorknobs possibly fabricated by sargent or the p. & f. corbin company, new britain, ct. the individual doorknobs vary slightly, either in design or surface patina. likely manufactured around 1910-1920. the doorknobs feature a centrally located hand with torch. bellflowers and laurel wreaths are used on each of the knobs. the lettering surrounds the hand with torch. the doorknobs are priced individually.