The new company had introduced a system of coordinates to specify locations within the mine, centred on Smith's Shaft . Thus the "'940N Winze "'was north of Smith's Shaft ( even though that shaft did not connect with the 175 Fathom Level . ) The 940N Winze was sunk in 1939 to a new "'200 Fathom Level "'in the heart of the rich North Ore Shoot.
