The drawer contains Baguley, Burton on Trent aperture cards of ALCO components (licensed to AEI), in number series 3558, 3563, 3576, 3592, 3622. Contract drawings:- South African Railways, contracts 19964, 20002, 20025, 20068, B19440, B19395, B19470, B19626, B19689 for Zaire/Grand Lacs.