Fifties vintage wall lamp with flexible arm

Vintage wall lamp from the fifties. Special model that has an enamelled red metal wall part and cap. The arm is brass and flexible, with which the light direction can be adjusted. The condition is quite good considering the age, on the inside of the cap some paint is damaged, see details. The dimensions are maximum 55 cm in length, the cap is 12 cm long and 13.5 cm in diameter.