Picked up a 12 Volt 22 amp motor (ebay) motor works fine it is made by GEC, about 4 1/2 " dia and around 8 " long.
The motor is labeled as a compound mootor and has four (4) brushes, two are connected to the case and the other two to a common field winding.
If anyone knows the motor is it possible to reverse its direction. Normal reversal of the external contacts will still rotate the motor in the same direction as expected
TIA
Adrian