1971 F600 brakes

[DNFXDLI]

Looks the same to me, slightly different layout though:

F600:

F100-350:

 

[1970Custom]

What are all the letters?

 

[DNFXDLI]

Location

 

[restorepers]

I really need your help kind sir, what is the name of the book that these pages originate from, i've looked everywhere but can't find the service book with these exact pages in them.

 

[Fellro]

They are original factory manuals.