Shinano Kenshi Steppers

Has anyone got a color coding diagram for Shinano motors?

Also has anyone got any idea of how to decode their serial no.'s?

I have received 5 steppers and have no idea of their torque rating. Four
of the motors are Ser. No. STH-55D203-02, and the last one is a Shinano
06320-105. All motors are 5V 1A, 1.8 deg step.

The first four motors are 6 wire, and the last one is an 8 wire model.

Any help is greatly appreciated.

Thanks

Don Hughes