The usual way to avoid this is to drive the rear wheels through a chain or some other mechanism. This oldie though took the opposite approach. They locked down the front wheel and linked the handle bars to the rear wheels.
Rear steer isn’t entirely a bad idea. It’s common among fork lifts It does take some getting used to though, and given a tricycle high center of gravity and the single front wheel I expect many a child tumbled sideways when attempting a sharp turn at speed.
Technology aside this is a beautiful machine. The rounded front frame rails that pull back into a tear drop shape are a work of art. The front fender complements the frame in color and shape.
Unfortunately I’m not the only one whose impressed. With just under five days to go the current bid is $164.50 plus $39.99 shipping.