Found:


Excavating shaft No. 26

George P. Hall & Son, c. 1883 - in or before 1887, photomechanical print, RP-F-2001-7-1078-1

Turning the arch

George P. Hall & Son, c. 1883 - in or before 1887, photomechanical print, RP-F-2001-7-1078-14

Shaft no 22

George P. Hall & Son, c. 1883 - in or before 1887, photomechanical print, RP-F-2001-7-1078-6