Old Hygrade Light Bulb -- Any information?

[tere]

Hello All.

I have an old Hygrade light bulb which I don't know anything about. Could someone tell me when it was made, whether its rare or common, and how much it might be worth.

[Tim]

Tere,

Welcome to the forum and thanks for sharing your pictures.? A brief history of Hygrade is documented here:

http://www.sylvania.com/AboutUs/ExploreOurCompany/HowWeBegan/

In general terms, the bulb you have is known as a drawn tungsten filament type.? It was most likely made between 1911 and 1920.? Such bulbs are fairly common among collectors and they don’t hold much value, perhaps around $10-$15 if still working.? Since your bulb has an original paper label from a company with humble roots, it may appeal a little more to the right collector interested in such history.

Thanks again for sharing.

[tere]

Thank you very much Tim