A friend of mine has been asked by the Hadley family to write a biography of Bert Hadley. As well as his Austin works team racing he made a number of race appearances post war driving Jowetts, Jaguars and Healeys. What Geoff Roe (for it is he writing the book) needs is a photo of Bert and Bertie Mercer in the Austin Healey 100 in the 1953 Mille Miglia with a start number of 548. They retired from the race after the throttle linkage broke and didn't make it as far as Rome.
I have looked in all the usual places (Canestrini, Lurani, Lawrence and Pritchard) plus the Brooklands Books and I've drawn a blank. Can anyone help?