Bottle found on side of a Delaware island

I found a bottle on the edge of the island where I stopped the boat. My post got deleted so I am going straight into what the bottle says.
The front of the bottle reads "Federal Law Forbids Sale," and on the front's lower region the text reads "Half Pint,".
On the back of the bottle, the top of it reads "Or Re-Use Of This Bottle,". The lower area reads "Half-Pint,"
The middle of the bottom of this bottle reads;
73
D-?3
56
On the left side of the bottom, the text reads "Ball," in cursive.
On the right side of the bottom, the reads "B 5"
I would appreciate help

Images:
http://imgur.com/KuqbOwS.jpg - Right side of the bottom
http://i.imgur.com/WKiSl30.jpg - Middle of the bottom
http://i.imgur.com/krm6onS.jpg - Left side of the bottom

http://i.imgur.com/wvWHtX2.jpg - Upper region of the front
http://i.imgur.com/hI93fuo.jpg - Lower region of the front

http://i.imgur.com/cmAs5oE.jpg - Upper region of the back
http://i.imgur.com/vy9hZeX.jpg - Lower region of the back

Taking pictures of the worn-out glass bottle was pretty awkward, but I think they're good enough. Thanks if you can help me! I am interested to know what is it, and what the dating is.