The subject is not covered in Berkeley Heights' local history books, so I searched The Dispatch, a local newspaper that we have on PDF. Anyone can come in the library and search this newspaper by keyword, although you have to search it issue by issue. Here's a picture of the NIKE exhibit in the lobby of the Summit Trust Company bank in August 1957. The rest of the article follows (yes, there are grammatical errors, which are not mine. The emphasis on electronic brains taking up entire trailers is mine.)
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The exhibit consists of a mechanically operated model of various NIKE Units at the Watchung base. These consist of a long range radar which continually sweeps the skies for enemy aircraft target radar, then missile radar which is electronically operated launches the guided missile NIKE. The 2 radars follow the enemy guide the missile and explode it at the right moment. The electronic brain that control the system are housed in several trailers. All these units are shown in coordinated action in the exhibit.
Nike is the Army's first combat-ready supersonic anti-aircraft missile designed to follow and destroy an enemy target regardless of evasive action. It's the first guided missile system to help defend American cities against attack from the air. Named after the Goddess of Victory in Greek mythology, Nike is end product of eight years of intensive research, development and engineering in the field of guided missiles. Bell Laboratories, part of a service-industry team also including Western Electric, Douglas Aircraft Company, and the Army Ordinance Corp carried out this conception design and final development of Nike.
You can see photos of Nikesite Road, the former access road, here.