1951 was the year of the Standard Steam Locomotive. The Railway Magazine of the time focussed on the development of these locos. Rather than just looking backwards to those days, it is good to listen to and read things from the perspective of the time! http://rogerfarnworth.com/2019/07/08/british-standard-steam-locomotives
"In the late 1950s and the 1960s, new was better and almost always associated without question with progress." To this day we still continue with this idea.