Sunday August 20, 2006: close up of the 
tamping bars/general hydraulic bit and pieces
of Plasseur and Theurer tamper/leveller DR73916
stoped at Dyce station, some seven miles north 
east of Aberdeen.  The small wheel above the
third sleeper from the left was periodically going
up and down, accompanied by much hydraulic hissing...  
Expert commentary welcome!

Photo by Bill Harrison (bill.harrison@dsl.pipex.com)