I remember seeing those earlier phones and I thought the person must be government or high up.
I think mine was foldup type tho.
Some were actually test models - prototypes - at least the ones we had were, so we had extensive questionnaires to fill-out after using them for a selected period. They got very hot in the charger, and the short battery charge was a major problem. Carrying a spare, or taking the charger along in its fat briefcase was a PITA.
I have one of these in my collection:
http://www.angus1.com/ericsson/eiffel.htm