Antique & Vintage Lighting from 1900-1970 Lamp Parts
Vintage Lamps & Lamp Parts
Matt silver connecting sphere (ball) to connect 4 pipes in a cross shape.The internal thread of the openings is M13x1.
Here you will find an M13 corner piece / 90 degree coupling
Here you will find M13 pipes
interne draad: M13 x 1