Hello, you are viewing a vintage, milk glass, diamond pattern oil lamp/hurricane lamp.
There is a bit of wick on the inside.
This has not been tested.
There is some rust/light staining/silver rub off. Please notice in the last photo, the chip on the top of the glass.
Bottom says Made in Hong Kong.
It is about 9 1/4in tall.
Please let me know if you have any questions!