Great Western Railway > Monmouthshire and Brecon Canals (Canal Numbers 95 and 95A) > Railways, tramways, roads and collieries
Plan of Oakdale Colliery, Brithdir Seam
With added title "Plan referred to in Mr Vachell's Report dated 11th October 1924" with list of other reports. Plan referred to dated 1927-1946. Endorsed "Penyvan Reservoir. Oakdale Nav.n Collieries. Papers 6010."