Louis Marx Great Britain Transformers/Controllers
 
Louis Marx US made transformer/controller for export, wound for 220 volts 50-60 Hz (cycles) input  | 

 
British Marx 381 transformer/controller, made in Swansea, 230/250 volts 50 Hz (cycles) input Supplied with British Marx 3978 Freight Set  | 
 
British Marx 381 transformer/controller, made in Swansea, 230/250 volts 50 Hz (cycles) input Supplied with British Marx 3978 Freight Set  | 

 
Louis Marx US made transformer/controller for export, wound for 220 volts 50-60 Hz (cycles) input, Dutch markings Seen offered for sale with a British Marx 3978 passenger set  | 

 
Louis Marx British made transformer/controller  | 

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