Untitled file containing correspondence between the Earl of Jersey and J. B. Williams of the Estate Office, Briton Ferry, relating to the lease of the Tymaen Sidings, Cwmavon, dated 4 May 1892; also to a lease for 14 years from 25 Mar 1927 for £275 annual rent of the Glamorgan Works, Llansamlet; also of sale of freehold of the Copper Miners' Tinplate Works, Cwmavon, for £9000, 1933; also schedule of sales of freehold ground rents in the Briton Ferry Estate, 1933