As I continue to learn about the Allis Roto-Baler, here is a factoid I learned from Jim Palmer…As opposed to the “Standard” model, the “Model 10″ Roto-baler featured a second conveyor mounted above the regular hay pickup.  When a twine was being wrapped, the hay was diverted to this upper conveyor. This was supposed to eliminate the need to stop during twine wrapping. Didnt work very good and many were converted back to the Standard arrangment. These Model 10’s were denoted with a “C” prefix in the serial number.