Thanks for all of the help and interest on this. After the tip from arw that it was a Gulf post I did some searching and found a couple of other pics, as well. The ring on the sign today definitely is smaller than the signs in the pics.
I have no idea if this is for sale or not but figure the worst thing they can do is to tell me "no." As a married guy of 26 years that won't phase me at all... Any idea on what it would be worth, as is?
Here's a couple of other pics I found if anyone is interested. Thanks to nochevys for the others!
