For the 4 islands in Manila Bay that used to be the Manila Bay Defense Forts, Corregidor-Ft. Mills, Caballo-Ft. Hughes, Fraile-Ft. Drum, Carabao-Ft.Frank.
Zf867. Blueprint for the Malinta North System.
Zf866. RCW for the Malinta North System.
Zf865. RCW for the Malinta Central System.
Zf864. The Malinta Tunnel east entrance in 1945.
Zf863. A trolley car at the west entrance.
Zf862. The Malinta Tunnel west entrance during construction.
Zf861. Bilibid prisoners At the Stockade Level
Zf860. Bilibid prisoners At the Stockade Level.
Zf858 A photo of the same partially repainted entrance taken 2010.
Zf857. 1966 photo of the Malinta Tunnel North entrance with the wrong stenciled construction timeline information