Would like to see one that says IR 41. They say AM 11-41 and they are painted tin. All Ingram Richardson sign I have seen have been porcelain which these keyholes are not. There are a ton of fake mobilgas keyholes that are dated like original. Buyer beware without having it in hand or knowing what to look for.
Pic of it on a pump. Not mine.

Quart and Liter can relidding and dent removal services.PM for detail and pricing.
Collecting Mobil and other graphic quart cans.