Found a coke bottle in river?

Ok so I was doing some volunteer work by cleaning a river. So I pulled out a GL coke bottle. The only words on it is coca-cola and below that it says trademark registered. Below tht it says in u.s. Patent office. On the side it says it is 12. Fl. Oz. Then on the bottom it says 23 I 63. Thts all it says. Does anyone know if it's anything special?