Brutalist hand crafted sheet metal wall lamp, Germany 1970s

Brutalist style wall lamp with geometric shapes. Hand crafted from a large sheet of steel. A standard small plug is fitted behind the opening which fits a standard Edison style screw bulb. Suitable for both 240volts and 110volts use depending on the bulb used.
The steel has some oxidation on the surface. The edges have more oxidation. This has been done intentional by treating the outer edges with an acid.
Unique and handcrafted piece of metal art.