I need help from our Old Gas experts.

I have posted a photo of an original 94 inch by 22 inch Goodyear porcelain sign. I purchased one yesterday exactly like this one (mine is laying on the floor of our bedroom and unable to take a good photo of it). Does anyone know the date of this sign? Would it be 1920s? Any other info on it would be greatly appreciated. Thanks in advance!
Steve

Goodyear Sign.jpg
Last edited by Stephenwarren30; Tue Mar 15 2016 07:54 AM. Reason: to clarify topic subject