The Gunner's Mates Service School is an early SOM archetype. It exemplifies the principle that direct expression of a building’s function results in enduring, well-conceived form. Designed by William Priestley and Bruce Graham, the building is a column-free naval training space enclosed by a translucent curtain wall made of green glass. It is also among the earliest realizations of the Miesian concept of "universal space": the idea that open-span structures can adapt to a multitude of functions over time.