These brass knobs are belted, a raised band around the middle of the knob where the top is crimped or snapped over the base of the knob. There are two outer rings and two inner rings which gives these knobs the “circle” pattern of the 1920s and 1930s. One inner indented ring is dark (painted?) which gives a nice contrast with the brass.
Each knob is 2 1/4 inches across and 1 1/4 inches deep. The pair is in very good condition, with no cracks or dents. We have lightly cleaned this set, but no polishing. A spindle and two set screws are included.