Many thanks for the replies. The other pilot was a very experienced former RAAF pilot who had flown Meteors on operations during the Korean war. He was also a former Qantas captain. I wonder if that aircraft had a fully functional IFR instrument panel on the passenger's side or just radio stacks.
In most Barons any second AH is usually jammed in the bottom right hand corner of the passengers side and useless to the left seat pilot due huge parallax error.