You're fortunate to have these. There aren't too many of them. Ditmar Maxims are quite unique in the way they made them. They made them differently. Parts are quite hard to find. What do call the colour of the enamel on the 506 hood? Teal? Blue-green? The vaporizer is unique too.
the lights weren't on. everything as ditmar did. not native only incandescent grids. I want to add to the collection, but we can’t find ditmar, they are not there. very rare