Emergency Mine Control Panel, Model M4, from WWII.
Power Supply switch from Battery Hunter.
Plotting-board scale arms from Battery Seaman, Fort Dearborn.
Barr and Stroud 9-foot Horizontal Base Range Finder instrument scope, Type FQ 2, from WWI.
Plotting-board and scale arms from Battery 204, Fort Dearborn.
Signal lights from Fort Stark.
Sperry AA Searchlight Director, Model 1942A.
Fisher 3-inch MK 2 (1942) naval deck gun.
This was the gun mounted on New Battery Lytle #1 mount from 1963-1983.
Rear view of gun.
An inert WWI contact mine used in the harbor.