Hello,
Might anyone have any information or knowledge of mid-late 1970 - early 1980
Interton products?
I acquired a 1980 Alpina B7 turbo coupe 7yrs ago and one of these units
is mounted on a flexible gooseneck - After dismantling and repairing a few bits
it is now functioning I also have a typed card mounted on the co-driver side
describing its use.

Any info on this calculator is appreciated.
Thanks.
cheers,
DV