| Description | View of open trench with large diameter main and two valves; legend "Booster Connections - Athol Street Shows outlet holder main in the foreground with No 25 valve on the right to be connected round the back of the boosters. In the backgound beyond No 24 valve is the general outlet of booster main with the inlet to governor main going off to the left and the outlet of booster main coming in from the right"; Ref M179; dated December 1947 |