RPM Motor Oil Sign
My wife surprised me with this RPM Motor Oil sign at Christmas. This came out of a building in Ivanhoe, NC and it was used to cover a hole in the floor. If you look at the left hand side of this sign you can see the wood imprinted on the sign. We think this sign dates back to the mid 1940's. We haven't been able to find any other signs online like it but are looking to find more info and date this sign. Any help is appreciated.
Harry
