PEDRO MIGUEL LOCKS. VESSEL IN EAST CHAMBER GOING NORTH AND ONE IN WEST CHAMBER GOING SOUTH. VIEW FROM CONTROL HOUSE. JUNE, 1915.

PEDRO MIGUEL LOCKS. CHAIN FENDER MACHINE, UPPER SHEAVES AND CHAINS. NORTH END, EAST SIDE. MARCH 5, 1915.

MIRAFLORES LOCKS. ARGENTINE NAVAL TRAINING SHIP "PRESIDENTE SARMIENTO" IN UPPER EAST CHAMBER,
LOOKING NORTH FROM CONTROL HOUSE.