Peter Kerslake says "I wonder why the "Improved Directors" invariably looked neglected and travel weary during their working lives with British Railways, but 62664 Princess Mary is in typical condition in this image.
The fifth of the class, developed from the original D10 "Director" with improved cylinders, higher pitched boilers and improved cab design 62664 was built in May 1920 and remained in service until August 1960, having been one of five allocated to Northwich in the mid 'fifties.."