Ok, here is a poster w info:
The bus is a AEC Regal mark III from 1952. Its first body from T.Knutsen was replaced in 1970 w a body from Arna Bruk.
It was used in Ċlesund by the bus company Landes Rutebiler. This company had in 1947 -81 8 buses from AEC. Total number of AEC buses in Norway was 12. Also note that an AEC chassis was 3 times more expensive than a similar chassis from Volvo.
A friend, still an active coach driver in Ċlesund, started his career as driver of this actual bus.
The bus is restored and taken care of by Rutebilhistorisk Forening in Ċlesund, and is parked at their premises, and is still in use