Scan of a slide taken 14/10/90 at the 1990 Buckinghamshire Railway Centre's 1990 Grand Autumn Steam Up. I think this is works number 9537 (and if so the history is as below) but it could possibly be works number 9376, which was also once resident at Quainton Road:
"This locomotive is a later Sentinel design, incorporating improvements over previous designs of this type. It includes a rear bunker of larger capacity, a larger water tank of fabricated construction, and the ability to change gear without leaving the loco cab, but the loco has to be stationary when so doing. Other minor improvements in cab controls were also made.
Built in 1952, No. 9537 was delivered new, with sister loco No. 9536, to the Chesterfield Tube Co. Ltd, Chesterfield, Derbyshire. Both locos were named after the children of the works marketing director: No. 9536 became Timothy, and No. 9537, Susan.
In 1967 Timothy was part-exchanged for a Thomas Hill diesel loco, but his 'sister' Susan was sold for preservation to Mr. J. Morris of Lytham St. Annes, and exhibited in his "Motive Power Museum" from 1965. It was later sold to a QRS member, arriving at Quainton during 1984. Before long she was steaming again, running frequently on open days. She was sold again to another Quainton member in 1986.
It was retubed, and restored to service in 1993. It is vacuum braked and has often hauled trains on Open Days. The locomotive is vertically boilered and has a chain drive between the crankshaft and axles.
Susan left the Centre on 9th April 2014, initially moving to the South Devon Railway Works for work to be completed. It is then due to go onto the Barry Tourist Railway."
www.brc-stockbook.co.uk/9537.htm
