Vintage Turm Nereus Double Burner Alcohol Camping or Marine Stove. It is in good condition, made in Germany, pretty sure it dates to the 1960s, all original, measures approximately 19" x 12 x 8", stainless steel, the o ring for the pump has shrunk so will need to be replaced, could not get any pressure into the tank. With a new o ring it should be good to go.
eBay