Our Beaded Pattern dates to around 1900. We collected original antique pieces, remade the moulds and reproduce exact copies. These doorknobs are made of solid cast brass and are 2-1/8" diameter; The spindle is the same as many antique spindles; it is smooth and has set screw holes that works with both antique locks, and our  is a match to the antique style that has a smooth spindles with set screw holes and work with antique locks, and our modern tube latches.