A well engineered 2 inch scale model of an Aveling & Porter compound steam roller `Billow`, b

A well engineered 2 inch scale model of an Aveling & Porter compound steam roller `Billow`, built by Mr E.J. Davies of South Wales, the silver soldered copper boiler with fittings including regulator, sight glass, water gauge, pressure gauge, safety valves, blower, crank driven water pump and hand-operated feed pump, clack and other valves, the engine detail including compound cylinders of 1 1/16 inch bore and 1 1/2 inch bore, drain cocks with associated pipework, cross-head guides with lubricator, ratchet mechanical lubricator, Stephenson`s link reverse, eccentric driven feed pump, two road speeds and solid disc flywheel, the chassis detail including spoked wheels with flat ring rollers and fitted hub caps, hand brake, and footboard with tool box and water raiser, finished in green and black paintwork with a sign-written canopy, polished brightwork and brass banding to the boiler barrel, 90cm long; together with a well engineered 2 inch scale model of a heavy haulage articulated load loader, also built by Mr E.J. Davies, with detachable twin rear wheels, finished in dark red paintwork with wooden cross planking, 157cm long (with draw-bar in elevated position). Boiler history: New copper boiler fitted 1997, with identity mark EJD 1. Initial hydraulic test pressure 200 p.s.i. Southern Federation of Model Engineering Societies Boiler Test Record No.113757, the 120 p.s.i. hydraulic test valid until 12th April 2015 and steam test at 80 p.s.i. valid until 9th June 2012. Earlier boiler history also available. Note: The roller can be fired by coal or gas.