A gas fired model marine steam plant comprising a brass bound wood lagged brazed copper crosstube boiler with normal fittings and superheated steam line to Stuart Double 10 vertical engine with blued steel clad cylinders 3/4in. bore x 3/4in. stroke, draincocks, gear and eccentric driven feed pump and by-pass, displacement lubricator and disc flywheel, finished in red, black and polished brightwork, wood and metal bed -- 7½ x 22½in. (19 x 57cm.). Gas burner