Idenntified on shed are 5021 92006 92215 and 7317.

Peter Kerslake says "What a wonderful image from Cardiff Canton footbridge in its glory days and just three short years before all this would come to an end on the Western Region .
So much activity , with the variety of Motive Power that one would expect to see at Canton , including 5021 " Whittington Castle " , an Exeter and then Laira based engine in the mid ' fifties before a move in September of 1959 brought her here to Canton from where she was withdrawn in Septembe 1962 and just two months after the date of this image.
It is of interest to note that whereas 5021 has been given a tender full of good Welsh steam coal here on shed , the locomotives booked for freight duties such as 7317, 92006 and the engines alongside 5021 have received oval briquettes , an inferior grade of coal but doubtless considered adequate for their less demanding duties!
A young member of Canton's shed staff has the unenviable task of breaking up the " Castle's " coal and bringing it forward in the tender ready for the fireman when he arrives , and that piece at the back is going to take some effort ! "