This bottle is known as a Codd bottle, after William Codd who invented it
The Victorians didn't have screw top bottles or lift off caps;
Usually they used corks
When carbonated or ‘fizzy' drinks became popular the corks would sometimes pop out at any time
This Clever bottle has a marble in it that would seal the top using the pressure of the drink
To drink it you simply pushed the marble in to relieve the pressure and hey presto!
See Detail - Below....