coffin flasks

[judu]

i found this bottle this morning..its cracked on the back but i still had to keep it. im guessing this is what is called a coffin flask. my question is what were they for?.....

 

[beendiggin]

Here's some info on coffin flasks or shoo-fly flasks.


http://www.sha.org/bottle/liquor.htm#Shoo-fly & Coffin flasks