Bronze Age Gold from Wales

East Pit Winder, Elliot Colliery. General arrangement of alterations to winding Engines for Messrs. Powell Duffryn Steam Coal co. Ltd., WP Cylinders 28" Diameter LP 42" Diameter x 6' strokes. Winding drum 15' to 25' Diameter. Semi conical. Scale 3/4" to 1'. 10.11.64.

Engineering blueprint with stencilled and handwritten title at centre of bottom edge and a handwritten note recording name of pit serial number and when the plan was received in red pencil written at lower right-hand corner of drawing. With white label stuck in top left-hand corner.