Hi Michael.
Mine is a normal beelte speedo but with 160 km limit. No marks on it as it got a respray and the bodycover was replaced due to rust on the back. Mine came out of an APAL Coupe.
This is what a real MACH 1 owner answered me:
Hi Peter,
That's great.
The speedometer in the Mach1 prototypes you can see in period D'Ieteren press pictures is different than mine.
Mine is pretty close to the one shown on pre67vw forum but still different. In my opinion, these kind of speedometer was available in special order for special cars... Mine has a lot of writings on it. If I remember well, you had also this kind of speedometer in Apal coupé...
Greetings.
ZELENSIS, coachbuilt body from the 50's on a vw platform made in Belgium. Peter the heb detective