Peter photographed these two A4 streamlined locomotives at Grantham shed in August 1949. It's an interesting picture because it illustrates - within the limitations of black and white photography - how the nationalised railway was setting about involving its new owner, the public, in influencing the appearance of their trains.
On the left is No.60021 Wild Swan of Grantham shed. It carries the pre-nationalisation (LNER) livery of 'garter blue', the colour in which sister locomotve Mallard set the world speed record for steam in 1938.
On the right No.60028 Walter K Whigham, of King's Cross shed, has been painted by British Railways in an experimental and short-lived deeper blue in an effort to canvas public opinion on the choice of a future livery for Britain's express passenger locomotives.
Photograph lent by Peter Wilkinson.