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Prototype Era
Era 3 (1923 to 1947) The Big Four (LNER, LMS, GWR and SR)
The prototype coaches were constructed between 1914 and 1920 made of steel body sides with an absence of panelling but with bolection mouldings around the windows and frosted glass top light windows, sitting on Churchward 9’-0” bogies. They were designed to operate as a set comprising Left hand and right-hand Brake Thirds, 1 or 2-Thirds and left hand and right-hand Composites enabling all corridor windows to be displayed on the same side, commonly used for cross country and main line working between cities.
Chassis
Body
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Dapol GWR Corridor Toplight 1930 Chocolate & Cream Twin Cities Composite (LH 6944) is a 00‑gauge model coach supplied with part number 4P‑021‑202. It represents the “Big Four” era of British railways – the LNER, LMS, GWR and SR – and is aimed at model railway enthusiasts who wish to recreate early twentieth‑century main‑line services.
The prototype coaches were built between 1914 and 1920. They featured steel side panels without external paneling, bolection mouldings around the windows and frosted‑glass toplight windows, and rode on Churchward 9‑ft bogies. They were intended to operate as a set of left‑hand and right‑hand brake thirds, 1st/2nd‑class thirds and left‑hand and right‑hand composites, with all corridor windows on the same side, suitable for cross‑country and main‑line work between cities.
The chassis is die‑cast with two stamped metal compensation beams that allow wheel‑bearing electrical pick‑up via stub axles. Two variants of underframe truss rods are available, and the chassis framing is fully die‑cast. Couplings are close‑coupled on a cam to negotiate R2 (438 mm) curves and include NEM pockets for magnetic couplings, though traditional NEM‑compatible couplings can also be fitted. Wheels are cast for 00 gauge (16.5 mm) but have clearance for 18.2 mm gauge wheels; axles measure 26 mm over the end points and sprung metal buffers are provided.
The body is supplied in separate ABS‑plastic side sections. Gap‑free corridor connections enable operation on R2 curves. Each passenger compartment includes a separately fitted luggage rack, and period‑appropriate roof ventilators are provided as optional parts. Metal door and commode handles, destination boards (supplied separately), interior lighting and a DCC decoder plug with a blanking plug are also included.