This model locomotive was constructed of a body, a frame and wheels. The body was diecast in the white metal alloy zamak. The frame was diecast in a steel alloy. The frame was supported by the wheels, which in this instance was an 4-6-2 wheel arrangement. The driving wheels were held in place by crimped lugs.The wheels were also diecast in a steel alloy. In later production, the wheels were given a varnish like finish. Final production, the wheels were molded in plastic. The lead pony truck and middle pair of driving wheels did not have flanges. The trailing Bissel truck did not have true wheels but was made part of the diecast frame.
The model tender body was diecast in the white metal alloy zamak, mounted on a chassis diecast in a steel alloy. This was mounted on a pair of flanged wheels.
Apart from the obvious chimney, streamlined boiler and cab, there was significant additional detail. This included steam pipe, streamlined running plate and a front buffer beam. On the smokebox the locomotive number plate and the chyme whistle in front of the chimney. Along the sides of the boiler were hand grab rails and water feed pipes. The pistons and Walschaerts valve gear were outlined, with a smooth or chequered infill. The cab windows were also filled in.
Detail on the tender included coal and water cap and the chassis had four pairs of coil springs and axle boxes. There were steps on the side at each end. The train end of the tender had a corridor door cast.
Early production had a a riveted tin plate swivel eye linking the locomotive to a downward pin on the tender. The back of the tender had a cast ring loop. Later production gave the locomotive the more robust cast ring tow bar, the matching tender having an up facing pin.
The two parts were sold separately, the tender usually accompanied with a straight section of track.Detail on the engine included cylinders, molded pistons and valve gear, chimney, dome, whistle and hand rails on the boiler. Riveting was also shown on the firebox.
Detail on the tender included the the corridor at the train end of the tender, coal and water cap and the chassis included coil springs and axle boxes.
The livery was either pale metallic blue, silver, maroon or British Railways standard green. The smokebox and cab roof was painted black. The tender came in the same liveries, with coal painted black. There was high relief lining and the British Railways motif, which were picked out in red. The buffer beams were finished in red.
All painting was done prior to assembly. Assembly required fixing the frame to the body. This was achieved by a molded post inside each end passing through the frame. The ends were then peened, to keep the two parts together.
The tender had ‘LONE STAR LOCOS’ and ‘MADE IN ENGLAND’ cast in high relief on the underside.
