Conversion Glass UV-Reactive Proxy Core Cup: This handmade core cup by Conversion Glass features a deep cobalt-blue upper section over a fully worked lower section with tightly stacked green, yellow, white, and black patterning. The glass is UV reactive, giving the piece an entirely different appearance under ultraviolet light. Made for the Puffco Proxy and signed “Conversion 26” by the artist. Proxy device not included.
