DarkMoon,
This is not the original build... I tried to Private message you with an original unmolested build photo but your not set up to recieve PM's
I can't find the exact same design in the Herse Catalog either. The original owner (I'm the third) had a 69cm hiker built for him also and I suspect was a regular customer at the Herse shop.... So this was a very similar build the the 1968 "Gentleman's" bicycle without the chain guard. It was the original owners 'city bike'.
The tubing is incredibly light weight and most certainly not normal on a frame this tall.
I think allot of the Herse bicycles wound up being custom in one way or another