Junkers wall-mounted instantaneous water heater with shower

around 1920–40. Painted ribbed steel sheet and copper casing, on steel frame, with copper fittings. Gas-operated, can be connected to a chimney. Previously restored, in nice condition. (boiler)
size: height 120 cm (with shower) / 92 cm (appliance only), width 38 cm, depth 72 cm (with shower) / 25 cm (appliance only)