Looking back at my photos from July 1969 the line of locos outside the shed was 35028, Barclay 0-4-0 Lonr Fisher, 75029, 41298, what appears to be a 9f in pink primer (92203?) in the distance. Lurking in the shed there is the front of a Spamcan (34023?).
Army locos we encountered that day were 2-10-0 600 Gordon, 0-6-0ST 196 Errol Lonsdale, 0-4-0 North British DH 412 , 0-8-0 Sentinel DH 610 Lord Robertson, 0-6-0 Ruston DH 440 Hassan, 0-6-0 Ruston DH 425, and a 350HP 0-6-0 with names and numbers missing (possibly Basra or Bari?) used in a re-railing exercise.
Photos of the Army locos were posted here http://www.rmweb.co.uk/community/index.php?/topic/75286-black-and-white-photographic-memories/&do=findComment&comment=1140173