john dewar and sons distillers
The highly collectable, John Dewar and sons Limited distillers pub jug. The example below is the three cities version of the pub jug and bears the names Perth, Manchester, and London.
I believe that the example right is the more modern of the two having the thistle mark to the side.
Move your mouse on and off the front view of each example to see the side view of the Dewar jug.