Not all old green glass knobs give out an iridescent glow. Therefore, here at the store, we check every green knob that we acquire under a black light. The uranium oxide placed in the glass before 1915 comes forth to a yellow-green iridescence that makes us gasp. We have selected six of these special and rare knobs. These can be placed on a cupboard
or simply arranged on a shelf under a black light. Remind your friends that these beautiful 1 ¼” hexagon knobs are at least one hundred years old. Brass or nickel plated bolts to complete the set can be located elsewhere in the catalog.