You should put one on eBay and see what you get. Maybe you can get some extra spending money to add more rare finds to your collection. As they say, "You can't fix Stupid!" Let them pay what they want.
Thanks for the feedback and info. I was guessing it was 1981 from the "81" marking. The bottle has a screw-on cap type and the amber glass seems to be relatively thick. Nevertheless, it is stamped with "Please Don't Litter" on the edge of the base. Obviously, someone didn't heed that warning...
I recently dug up an Anheuser Busch Pony beer bottle out of my yard. They are unique markings on the bottom of the bottom that I can't seem to find any information on. The following raised markings are noted:
- AHK = A H K - Alexander H. Kerr & Company
- NC = ??????
- 81 = ?????
- 38 B = ...