There is a 1934 movie showing the Belgian rolling mills in action. However, the museum steadfastly refuses to even discuss obtaining a copy... They also have a 1934 version of the barrel smiths at work. They are on continuous display at the Museum of Walloon life in Liege.

My own belief is that the poorly made barrels were sent to the scrape heap decades ago.

If Steve keeps it up, he will soon have students / followers on all continents. smile

Pete