I am not too sure whether to comment here, or at vintage and classic forum.
Way back in 1973, in Paramaribo, Suriname, the hype was a collapsible (I mean collapsible, not foldable) I was 8 years old, and my father bought me one.
The brand was VICTORIA, clearly it was made in Germany.
Sadly I do not have it anymore, someone stole it.
But as I can vividly remember, the built of it was very sturdy, the pedals could be folded compactly, and the collapsed bike, really was neat.
Anyone still own one? Please let me know.