Dating a Knob Creek lamp

Hello! This Imgur link has pics of a lamp from a recent estate sale. It was in a table lot of random goodies so I have no info other than what I can provide in the pictures. I read elsewhere that I might be able to date/identify a lamp using the UL issue number, but I'm not sure where one might find lists of Knob Creek UL numbers....
If nothing else, I would appreciate a guesstimate of decade as it is not to my taste and I plan to sell (for that matter, general idea of worth would be appreciated too).
Thank you!

 

Being adventuresome this morning, I followed the link to your lamp. Most will not. I don't think you can date by UL numbers. Looking at the lamp and wiring, I think no earlier than the 70s.

Posting for you....