Hi Mario,
I think we're agreed that the front fork is Puch, so now it just comes down to identifying the rest of the bike.
With the better photos, it now seems stranger than before!
Correct me if I'm wrong, but it looks like the motor drives by chain to a countershaft, then on by another chain to the rear wheel. What's on the end of the countershaft? Is that large disk just for the generator to drive from? Or a clutch?
The back wheel looks interesting. Perhaps it has a clutch, or even a 2 speed gear inside? This fits in with the little I know about Puch. There is the remains of a c1912 model R2 here in Australia, which is similar to the Model N but has chain drive and a 2 speed gear in the rear hub. I have also seen an early 1930s Puch spilt single that has a "normal" gearbox, but has its clutch in the back wheel. Obviously Puch liked complicated rear hubs.
And isn't that another sprocket I see on the right side of the rear hub? For a pedal chain? If so, the hub could be pre-WW1.
To me, it is the frame of the bike that looks very strange. What are those lugs on the seat tube? If you look closely, does it look as if it has been altered?
And the motor? I'm not sure. I doubt very much if it is pre-1910, but it could be just pre- or post-WW1. Is it Puch? You might have to find a Puch expert to sort that out!
Here's my guess: I suspect the bike started out as an early Puch, and was heavily modernised (say in the 1920s) to lower the seat height, incorporate the generator, and generally make it look less antique.
Keep searching for info, Mario, you've got something very interesting here!
Leon
