old blue phone with keys

There is the orange phone of the 70s and, just as decorative, there is the model blue duck or oil blue born probably a little later... This key model dates back to 1983. It is complete but has not been tested. So I don't know if he could return to service (why not?). Good seniority but visible sons at the back of the post. (see photos).

Ref. : 9P8PQJJ9