That surprised me.I'm leaning towards Cyclo as a possibility.
I know they made pedals.
Thanks for your efforts PaulHave pictures of 6 different models .trouble is they are to small to be of much used.
As I say just a possibility
All efforts appreciated, if it was easy everyone would do itWading through 1950' copies of ' Cycling including show specials .
Needle in haystack.
Off out on two wheels in a while