I've just recycled two adjoining caches which have been archived for some time.
In order to avoid any confusion, and to be sure of my etiquette, I asked the GC reviewers to contact the previous owner.
They did so but received no reponse from him over a four week period.
Apparently, new GC guidelines prevent archived caches being adopted and reactivated. Its now necessary to submit a whole new cache, which is what I have done.
Try not to let your mind wander...........
It's too small and fragile to be out by itself