This is a gem! A short film (2.5 minutes) showing Dalle de verre being made.
If you aren’t sure what Dalle de verre is they’re like chunky mosaics. It’s the technique of sawing or breaking thick (3cm /1.2 inches) coloured slabs of glass with a hammer then chipping the edges to make a lovely refracted light on the edges. What fun!
They’re then cemented in place with a liquid cement, left for three weeks before being held up to the light in all their glory.
The technique was invented in the 1930s, and this film is from 1956. These days, the glass is held in place with resin, but there are still construction difficulties with this type of window…
…they tend to leak!
P.S. We DO NOT speak like this in the UK 🙂