German Vehicle Driver's Foot Heating System. Marked 'Größe 42' indicating the shoe size. Complete with cable and bakelite (car type) plug. The set is not visible maker marked or dated, I don't know exactly from which period this set date, production and materials look to be from WW2 period. I've never seen a similar set before and can't find any information so any information is welcome. Priced accordingly in my opinion!