This is a Georgian, English, panel-moulded jelly glass dating from the second half of the 18th century, c1780.  

The glass is in excellent condition for its age.  This means, of course, that it shows age related wear and tear to the rim of the foot consistent with some 200 years of use. It has a rough pontil mark on the underside of the foot.

The glass has a bell-shaped bowl measuring 6.5 cm (2.6 inches) in diameter at the top rim.  The bowl is panel-moulded and sits directly on a conical foot which measures 6 cm (2.4 inches) in diameter.  The glass is 10 cm (4 inches) in height. There are no chips, cracks, significant scratches or any obvious evidence of restoration.  There is a long, thin unburst bubble (and another tiny one) in the metal of the foot and a small unburst bubble and a couple of tiny inclusions in the metal of the bowl, all dating from manufacture

It is made from English lead metal weighing 130 g. (~ 5 oz.).   9236a