Looks like a fake to me, with major effort to damage,age and defraud...

[url=http://www.ebay.com/itm/Standard-Gas-Vintage-Porcelain-Sign-Lubester-Plate-Gas-Station-Gas-Pump-Oil/172123893775?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Dc809f8f6c20947a2be30a845189afd75%26pid%3D100338%26rk%3D7%26rkt%3D10%26sd%3D141920654602]Fake Standard ebay[/url]