File:London Underground Schöma locomotive No4 PAM.JPG

Summary
https://commons.wikimedia.org/wiki/File:London_Underground_Sch%C3%B6ma_locomotive_No4_PAM.JPG Description English: tube-gauge Schoma diesel loco LUL No.4 "PAM" built for use on the Jubilee line extention project with exhaust and fitted with exhaust scrubber, seen here on a stationary engineering train on the Hammersmith and City line near to Westbourne park tube station Date	5 August 2010