A model Stuart No.4 vertical reversing stationary engine, well engineered by M.N. Bell with wood lagged cylinder 1½in. bore x 1¼in. stroke, draincocks, hand lever operated double bar type Stephenson's link reverse, trunk type crosshead guide, main bearing lubricator cups and spoked flywheel, cast bed and wood plinth, finished in green, black and polished brightwork -- 11 x 8¼in. (28 x 21cm.)