Casgliadau Arlein

East Pit Winder, Elliot Colliery. Proposed arrangement of alteration to Elliot Colliery Pit Winder making engines into tandem compounds. [Ref.69.162I.12 and 14]. Scale 1/2" to 1'. 10.11.64

Engineering blueprint with stencilled title across the bottom and a handwritten note in red pencil recording name of pit, serial number and date at bottom right-hand corner of drawing.