I recently acquired a nice little FFVRS 53, AKA Baby Bosch. There is not too many pictures on this model around so I thought I'd post some of the innards of mine. Says Germany on it so you know its good. I'm not sure what model this would of came stock on, it has two magnets and is in great shape.
One unit construction, I like it better than the split faceplates of the ZEV.
Brushes are a little goofy, just tiny wedges. The slip ring is a pretty cool piece. The interrupter ring is timed to god knows what, the original spec of the 53 was for Indians. Its been milled in the back of the housing with only the "R" remaining.
The spring arm that keeps the end cap on (I'm missing both so I'll make them I guess) had broken off inside the case. Some LH drill bits took that right out!
Little guy sparks real nice! I have to make a few of the wire retainers to get the plug wires in but she is a runner!