All About Aurora Postage Stamp Trains
4431: Speed Controller
As far as I've been able to determine, this product was never released by Aurora as a Postage Stamp product, although they were obviously included in the bus sets.
NOTE: The units have four clear rubbery feet that press-fit onto nibs molded in the base (right). As they age, the feet may turn yellow, get harder,
shrink and fall off.
The closest equivalent Faller product is 4031, which is their standard AMS HO Scale controller. They came in red, yellow and blue, although the ones included in the bus sets were only blue, with a circular red »N« badge on top.
