Swift Glass Company, Inc. Elmira, New York 14902 Tel: 800-537-9438 Leading Global Manufacturer of Custom Glass & Quartz Products. Including Sight Glass, Filters, Lenses For Optical & Electrical Instruments, Gauge Glass, Metallized Glass, Tempered Glass, Silk Screened Glass, Decorated Glass, Heat Resistant Glass, Nickel Alloy, Pattern Glass, Flat & Float Glass, Oil Cup Glass, Plain & High Pressure Annular. Materials Include: Bronze & Grey Color Filters, Borofloat, Fused Silica & Borosilicate. Copyright © Industrial Leaders All rights reserved.  Privacy Statement Please read important copyright notices and disclaimers information.