Turret Ring Bolts, Fort Drum Construction, Fraile Island from CSDG.
A picture of Ft. Drum under construction on Fraile Island in Manila Bay, given to me Glen Williford, a leader in the Coastal Defense Study Group (CDSG). The original picture name was: Pcon-077 MHI-Belote Ft Drum turret ring bolts-p18b7nck1i6881kejeon5q019f6