The main reason of visiting Leerdam was an invitation of the Finnish glass factory : Iittala to watch a demonstration of making the famous Alvar Aalto vase.
( And other glass workers at work.)
You gave me an idea to go to the glass blowing place near where I live. They have a place up above their work area enclosed in glass that you can watch. These are cool shots. Must have been kind of warm close by.
Ian