Letter covers 1. from [Hird Dawson & Cardy] to The Managers of the Railway Works, Shildon, Nr Darlington, 14 Jul 1841; 2. from Dubs & Co to Wm Bouch Esq, Loco Superintendent, Stockton & Darlington Railway, Darlington, 7 Jul 1864; 3. from [?] Chemical Co, Glasgow, to Wm Bouch Esq, Shildon Engine Works, near Darlington, 31 Jan 1858; 4. from H Briscoll & Co, Liverpool to Messrs The Shildon Works Co, Shildon Engine works, nr Darlington, 25 Apr 1860; 5. from Derby to Mr Bouch, Railway Works, Shildon, Darlington, 30 Sep 1855.