Teak harmonica lamp with the invention of T. J. W. Zweers for which a patent was granted in 1959, number 100,813
On the back of the wooden mounting plate you can see the stamp with signature and stamp
This is a very large version with 6 hinge points, the click system allows the lamp to be put in different positions, see photos
It can be extended up to 170 cm with a height difference of the highest point and lowest point is 120 cm
1950s/60s number 150