Arc welding transformer. 
240V Single phase input and multiple tappings for up to 150Amp output for different size welding electrodes up to 4mm.
Works from a standard 13Amp socket, but ideally should be connected to a 20Amp 240V supply when using the 150Amp output.
Old, but still in good working condition.
Ideal for a beginner or DIY enthusiast with the separate tappings for 1.5mm, 2.0mm, 2.5mm, 3.25mm and 4mm welding rods.
Industrial quality and it is very heavy at over 25Kg.
Collection in person only.