How interesting. I did think the one on the right was German, I have a large vase with bottle/emerald green strapping like that with a "Made in Germany" label on it, but never knew the period or the name of the maker.
Would these designs have been made after the '50s and into the next few decades as well? It looks a bit contemporary for '50s, or were they just a bit ahead of the uk... again?
I see from your Fact File that they were in operation from '26 - the '70s.