Heljan Class 50 BR Blue Unnumbered O Gauge Diesel Model Train HN4020. A class of 50 high- power Type 4 diesels built to accelerate Anglo-Scottish expresses during the electrification of the West Coast Mainline. Famously used in pairs prior to the start of electric services, the class was transferred to the Western Region in the mid-1970s to replace the'Western' diesel-hydraulics. Heljan's model depicts the class after refurbishment in the early-1980s.MODEL FEATURES DCC Ready Working Directional Lights Sprung Buffers Sound Ready 3-Link Chain Couplings Un-Numbered Variation. (c)2017 Jadlam Racing Ltd. The item "Heljan Class 50 BR Blue Unnumbered O Gauge Diesel Model Train HN4020" is in sale since Friday, July 16, 2021. This item is in the category "Collectables\Model Railways & Trains\O Gauge\Locomotives". The seller is "jadlamracing" and is located in Somerset. This item can be shipped to United Kingdom.