I'm no expert, but that looks like a sign that was cut and placed into an existing can from a different sign altogether (re-purposed), due to the odd shape.

Maybe a Mobil expert will chime in to help you.

Last edited by Speedracer; Wed Oct 18 2017 03:46 AM.
-Steve B. (WTB: 48" Flying A button, 48" black/org Phillips 66, White Star, and Chevrolet Signs. Also looking for a Wayne 866. Send a PM. Thanks.)