donsbulbs.com
Don's bulbs
rare light bulbs and lamps
glossary of termsinformation
definition of: /FR

What is special name suffix "/FR"?

This special name encoding reference means: Frosted glass. Typically applied to outside of glass, but frost coat could be applied to bulb inside glass.

Also see /IF and /CL

references for this page: /FR, FROSTED, FROSTED GLASS

references to this page: /C, /HF, /IF, /LF, ENCODINGS PHILIPS OLD BULBS