
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.