The phosco p236 is a rare lantern that could run SON, MBI or MBF Lamps. They are made from LM6 cast aluminium and they have a polycarbonate bowl.

Staines, Surrey 

This phosco p236 is on a building adjacent to the A308 in Staines. It runs a mercury vapour lamp (all the time!)

Birmingham 

This phosco p236 is mounted on a wall in the B4100 in Birmingham, it likely ran a MBF lamp when it was in service