Not all old green 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 friend that these beautiful 1 1/4″ ten-point or fluted knobs are at least one hundred years old.