[Substation 4.]

Sub Power Station 4 Looking N E

Sub Power Station 4 Looking West

Sub Power Station 4 Looking East

Sub Station 4 Looking North

Sub Station 4 Looking N E

Sub Station 4 Looking N E

Sub Station 4 Looking West

[Construction of substation 4.]

[Interior of substation.]

[Interior of substation.]

Sub Station 4 Looking East

Sub Station 4 Looking West

Sub Station 4 Looking West

[Interior of an unidentified substation.]

Sub Station 4 Starting Set

Sub Station 4 Elevator Machine

Sub Station 4 Looking West

Sub Station 4 Lighting Switchboard

[Interior of substation.]