Workings in the Two Feet Nine Seam, Llwynypia Colliery and Anthony and Pandy Pits [Naval Colliery]

Scope and Content

Lines of workings also shown for National and Standard Collieries. The plan is also annotated with unidentified estate boundaries. Additional housing has also been annotated on the plan in Blaen Clydach and Clydach Vale. The plan is undated but shows workings up to 1940. Scale 1:2500

Administrative / Biographical History

This plan comprises the following annotated Ordnance Survey Sheet(s): Glamorgan Sheets 18.14, 18.15, 18.16, 27.2, 27.3, 27.4, 27.6, 27.7, 27.8 (second edition, 1900). National Grid Reference for Llwynypia Colliery: SS994933. National Grid Reference Anthony and Pandy Pits: SS998919.

Custodial History

Previous reference number: DNCB/75/48