Vintage brass gooseneck desk lamp, 1960s, Germany

Here is a nice brass gooseneck desk lamp, vintage, 60s, germany. Probably made by sis, but unfortunately no label. Working, e27 socket. Height: 33 cm shade diameter: 11.5 cm condition: good, with two visible dents in the shade and some rust on the brass. Still worth collecting because of its beautiful design. Hence the low price.