Box containing two hundred and twenty-five folded plans,correspondence, technical paperwork and progress of work books within individual folders for each named company:

- fifty-nine plans in a folder titled 'London, Brighton and the South Coast Railway Company'.
- thirteen plans in a folder titled 'London, Chatham and Dover'.
- nine plans in a folder titled 'Lancashire and Yorkshire Railway Company.
- twenty-seven plans in folder titled 'James Neilson and Sons'.
- twenty-two plans in a folder titled 'London, Midland and Scottish Company'.
- one plan in a folder titled 'Nautilus S S Company'.
- twenty-nine plans in a folder titled 'Messrs McKie and Baxter'.
- ten plans in a folder titled 'Messrs Keith and Muir'.
- twenty-one plans in a folder titled 'King Brown & Company'.
- one plan in a folder titled 'Kirktonhill Elec Lighting Company'.
- three plans in a folder titled 'A.M. Millan & Sons'.
- eleven plans in a folder titled 'Messrs Maclaren Bros'.
- one plan in a folder titled 'Kelvin Bottomley and Baird'.
- eighteen plans in a folder titled 'London and Northwestern Railway Company'.

Box label 'D Eng IX Firms Keith - Neilson'.