I picked up this great little trolley last weekend at a swap meet. It is made for 3 rail oo gauge track. It runs very well on dc power. It has a key cutout on one side.
Anyone know who made it and when? What track would work with it since it has that large drive gear on the wheel?
What is the best way to clean the wheels? They have built up corrosion on them.
I don't see any Mark's on the trolley, just "Germany" on the bottom.