This 3 fold brass knobs was made by Reading in the 1930 catalog. It is part of the G-13100 Locris group. One knob takes a 0.25 in. spindle, while the other takes a 0.375 in. entry sized spindle. Priced as a pair of knobs with spindle. One has a more golden brass patina and the other has a more brown bronzy patina. The dimensions are 2.25 in. diameter x 2.25 in. D.