Model wall lamp "Chartres" created by A. Lankhorst in 1968 for Raak Amsterdam.
the sconces are in perfect condition, with beautiful pieces of glass slice and piece.
In the period documentation below, the process is explained.

"Just like church windows are stained, these glass plastics are" melted ".
A colored glass composition was melted on a reinforced glass base. There are no two identical plastics, but they are all essential as a Cobra school painting ... "

width 26 height 37 depth 15