The World is Made of Glass Ltd. has dated this piece to the 18th Century.
The lamp is in excellent condition for its age.
It has a rough pontil mark on the underside of the foot.

The lamp has an ovoid-shaped bowl reservoir measuring 7.5 cm (3 inches) in diameter. The bowl sits on a plain stem that leads to an upturned "drip tray" foot with a folded over rim that measures 10.5 cm (4.2 inches) in diameter. The lamp is 14 cm (5.6 inches) in height. There are no chips, cracks, significant scratches or any evidence of restoration.
It weighs 210 g. (~ 7 1/2 oz.).
The World is Made of Glass Ltd. has dated this piece to the 18th Century.
Dealing in antique and collectable glass from the 17th to the 21st century.
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