1Norwalk Lock Doorknob Set Hardware Nor-991May 21, 2020/in Interior Doorknobs Brass & Iron, Norwalk Lock Co./by adminNice pair of circa 1900 cast iron doorknobs by Norwalk Lock Co. in very nice condition measure 2-1/4″ in diameter and take a 1/4″ spindle. ADCA designation H-41300. PRICE FOR PAIR