Hornby OO R40213 Balfour Beatty BDC977165 Mk1 BSK Engineers Staff Coach Grey & Yellow

The first standardised railway carriage design built by British Railways, the Mark 1 Coach introduced in 1951 continued to be produced until 1963, and even later in the form of multiple units and non-passenger stock. Mk1 Coaches were built in various places including Derby, Doncaster, Eastleigh, Swindon, Wolverton and York.