In the 1960s, Tri-ang Railways released the 0-4-0 industrial tank locomotive, No. 7 'Nellie', in a blue livery with the number R355B. These locomotive models were produced in the Rovex Scale Models Limited Margate factory and arrived in customers' hands encased in the iconic Tri-ang Railways red and yellow packaging. The design for the locomotive appears to have been based on a Class C14 which was intended for suburban passenger traffic around the city of London and was designed by Dugald Drummond for the London & South Western Railway in 1906.