The actual number 56025 was an early 264 class built in 1890 and for its working life was primarily based at St. Rollox railway works, where it was the works shunter until its withdrawal in 1960. The livery of the model is based upon the mixed traffic livery of British Railways, black with red and white lining. Photographs of the original 56025 from 1955 show that instead of the graffiti, the engine had a lined saddle tank with an early British Railways "cycling lion" crest and, unlike the model, an enclosed footplate (as a works shunter, it would not have required a large quantity of coal). Most other members of the class were unlined black with an open footplate.