I'd agree with the suggestion of rummer. If the stem is cut and you have a good ring, then I'm assuming the bowl decoration is cut too, which in my opinion would probably date the glass to around 1840 - 1860 - perhaps a tad earlier. If the bottom of the inside of the bowl is less than clear, this might indicate the glass has been used for a type of drink called hot toddy - this involved mixing up the drink in a larger glass called a toddy rummer, using rum, brandy or gin, and adding lemon or nutmeg to flavour. After pouring into individual glasses, sugar was added and this was stirred and crushed with a galass toddy stick - this crushing would often cause the inside of the glass to become cloudy.
Had it been served today, they would have prepared it cold

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Probably more correct to call this one a drinking rummer, and these do go back a lot earlier than the date I've mentioned but I'm going on shape and the style of cut decoration when suggesting this period. It looks a bit too good to be a pub glass, but it might have originated from a similar source. Pub glasses weren't usually lead glass.
This is a good glass, full of history, and useful addition to the collection.

If Peter (old glassman) is there perhaps he will comment