One of a pair of small 0-4-4T constructed under Dean, its believed for branch lines with heavy curvature. They were superficially similar in concept to the ill-starred 3521 class, but considerably smaller, and like the 3521s went through a good number of changes in their early years. They started life in 1890 as 0-4-2 saddle tanks, with the same layout of much shorter spacing between the driving wheels than between the trailing drivers and the trailing wheels. In 1895 they were altered to the form shown, with a water tank in the bunker as well as the short side tanks. In this form they served for a few more years. The second, no 35, was condemned in 1906, whilst No 34, which had acquired a fully enclosed cab along the way, was sold to the army in 1908 and spent the next few years at the Longmoor Military Railway until condemned in 1921.
This second sketch is based on the only photo I've found showing the full cab, taken on the St Ives branch. Sadly the junction of the bunker and the cab is entirely speculative as the photograph has someone leaning on the relevant area. Its based on the treatment of that area on the 36xx, 2-4-2Ts, but they don't have the deep Dean style cab cut out, so I'm not altogether convinced.
Strictly speaking I ought to have drawn lining, but its a great deal of trouble, and gives very problematic reproduction if drawn to scale. At the scale I produce these sketches a 1/8in line is about a quarter of a pixel wide...
Edited by JimC