In 1959 Ian Allans "Trains Album" No 14 featured these two images by famous railway photographer R C Riley of units 1003 & 1012

The Railway Magazine

February 1975

The Railway Magazine

December 1958

Thumpers in the Media

How did the media report the introduction of the Thumpers back in 1957?

Here are some scans from the Railway Magazine and other publications from that period