Info on Sherwin Williams signs like this

My dad recently did a barn and garage clean out and was given this sign. They want to sell it but aren’t sure what it goes for and even what year it was made. I’ve tried researching it on my own but can’t find any like it. Can anyone pinpoint when it may have been made and where I could find more info on it?

I have no idea why it’s uploading upside down because it’s right side up on my phone.

 

Illuminated. And condition looks quite good. At a guess, I'd think 1960s because of the fonts and colorway. (The italic logo was gone by the early 1970s.)

Debora

 

This is a similar looking sign with an attached label saying 1969.

https://www.worthpoint.com/worthopedia/illuminated-sherwin-williams-paints-1975928128