A few years ago the historic Great Western Railway steam locomotive ‘City of Truro’ was in for a major overhaul. Before it was dismantled the workshop crew carefully re-painted one side of the loco and tender in British Railways black, complete with the early British Railways transfer on the tender. They took photos of the loco and stored them safely.
Then the loco was dismantled ready for its overhaul.
The following April 1st the photos were circulated to the railway enthusiast magazines, who printed stories of the historic ‘City of Truro’ being revealed after restoration in British Railways black, which caused more than a little outrage.
Meanwhile the City of Truro was actually restored into the Great Western green and maroon of the early 1900’s!
http://www.bluebell-railway.co.uk/bluebell/locos/vis/cot_benb_3jul05.jpg
The City of Truro’s claim to fame is that it is thought to be the first locomotive to reach 100 mph, in 1904, near Taunton.