Paraffin lamp (Seafield EH7)

"Anchor" brand pressure lamp, old. Chrome is flaking and discoloured in places, eg near the "By Blacks" label in 2nd photo. But plastic knobs etc look ok. Still seems to contain some paraffin - can hear liquid inside it anyway. No instructions or model number and it may require a mantle. No idea if it will work or how it works, we found it when clearing a shed and have never used it. So try it at your own risk!