Coupling & motor

[Wurger]

If it would be for the engine the werk nummer was started with 9 but not with 19.

Here is more completed motor seen in my post #13 above.

the source: the net.

 

[GrauGeist]

In post #7, the Abg.Lstg. number is "120", but if you look closely, it appears that there is a numeral "2" ghost beneath the numeral "1" - suggesting the original Abg.Lstg. being "220" perhaps?

 

[Wurger]

If you mean the Abg.Lstg number seen in the pic below ... IMHO there is no trace of the "2" ghost digit there. It is a light trick I would sau. The shape of the surface around the "1" was caused by the stamp.