In 1962 I had a F H Grubb recumbent from the mid 30's. The frame was welded, not bronze, more autonomous, and was fitted with 20 x 1 3/8 junevile westwood wheels, with a K type SA gear.
Quite fast downhill, but slow uphill. As I normally got perhaps 1/3 power on the upstroke, and this did not exist, perhaps my style didn't suit it.
The toeclips made very little difference, I think the theory was that you pushed the pedals forward, possibly getting more power from the back rest.
The worst thing was looking up at the bus wheels as they went past.