Keystone Gas Porcelain Sign

Keystone Gas is not a Brand that we ever had in Utah to my knowledge. I have seen a lot of Signs but not a lot of these. I was told it came from Pittsburg but I found it in an Antique store in Albequerque NM on our way to El Paso last week.
A little research shows me that it was the Brand used by the United Refinery Co in Warren PA and began in 1902 and in about 2002 they acquired the name of Citgo and also sell Kwik Fill as well as Keystone gas. They still produce about 70,000 Barrels of gas/diesel/day.
The Sign is in pretty nice condition and just needs a good cleaning and re paint the ring and it’s ready to hang from an arm pole in the Lakeside Museum.