denalicrystal.com
Denali CrystalSculptures are made of the purest form of optical lead glass. Because of its sophisticated processing and high lead content optical glass is unsurpassed in its ability to gather and transmit light. It is this clarity and brilliance that make optical glass such an attractive and inspiring material for Denali Crystal sculptures. PO Box 1564 Benicia, CA 94510.
http://www.denalicrystal.com/