Are you sure the logo is a ‘W’ and not a stylised ‘GE’ in script lettering, like this (for General Electric)?:
General Electric produced a NE-30 (neon) “Electric Glow Lamp Light Bulb”, originally marketed as “a night light for hallways, exits, nurseries and bedrooms” with the claim “burn night and day for less than a dime a month”. There were a variety of filament designs and the bulbs also saw use as pilot or indicator lights in small instrumentation devices including radios, in arcade machines and by hobbyists.
OK, that does sound like the Westinghouse logo. I would still think it a neon glow lamp blub for the same kinds of long-life usage as for General Electric's offering.