On Wends and Thurs, the Royal Norfolk Show was held near Norwich, and First run route 100 connecting the town with the show grounds.
The service required 4 buses;
2 of the buses were RML240 [painted in red] and RML2717 [painted in Great Yarmouth Buses colour scheme - in Blue]. RML2623- the other routemaster based at Great Yarmonth was painted in yellow- but is not ready for service yet.
Here are RML2480 - in London red but Eastern Counties fleetnames- near the show grounds, and RML2717 in Norwich station.