The truly old porcelain knobs have a special look. They have a patina or aged look. Porcelain knobs like this one were used on a variety of cabinets throughout the homestead. This one is a common size.
The knob measures one inch across and projects 3/4 inch. The base is 3/4 inch across. A basic wood screw was often used to fasten the knob to the drawer. We suggest a black wood screw. (not included)