GWR Condensing 57XX 0-6-0PT No 8700, before it was renumbered as 9700 in January 1934, inside Old Oak Common shed in c1932.

The GWR condensing 97xx class were introduced for working over the Hammersmith and City lines to Smithfield; this was the prototype, they were known as Tunnel Motors to railwaymen and would be commonly found at Old Oak Common .

Photo: C.R. Gordon Stuart / Rail Archive Stephenson