Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums Petroliana Value Questions Union 76 Porcelain Shield Sign

Hello -

I found this recently out in the desert and hoped I could learn something about it. I don't find this particular sign on eBay, LiveAuctioneers, etc.

This sign measures 7 1/4 inches high and 7 inches wide.

Can anyone help with:

1) Age / time frame
2) Use / purpose (pump plate??)
3) Value

Thank you!