Collection of material relating to Beyer, Peacock, amassed by former employees of the company. The material is comprised of: photographs of the works, employees and locomotives; a bundle of letters written by Charles Beyer; site plans of Gorton; livery transfers; engineering drawings; notes and papers relating to the company history written by Harold Holden; papers, photographs and booklets relating to the centenary celebrations in 1954; books, brochures and leaflets.