An antique door knob can be classified as the type of finish for your door knob or it can be a door knob style for a certain kind of decor. Antique door knobs in the "old style" sense were made of beautiful wood. The wood workmanship was amazing in old "Victorian style" homes. Another kind of "antique door knob" would be the crystal of glass door knobs.
Today we have door knobs with antique brass finishes or antique door knobs made of iron. Choosing the right style of door knob for your home whether it is an antique door knob or something else is very important to the appearance of your doors.