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The sign which once accompanied the engine. It reads

Redstone Engine
"Old Reliable"

The Redstone missile was an improved version of the German A4/V2. First deployed in 1950, also known as the U.S. Army's "Old Reliable," the Redstone was a highly accurate, liquid propelled, surface-to-surface missile.

Thrust:	78,000 lb
Propellant:	Liquid Oxygen/Alcohol
Range:	200 mi
Velocity:	4855 ft/sec
Trajectory:	55 mi altitude

Developed by the U.S. Army and Chrysler Corp.

While the Redstone missile itself was developed by the U.S. Army and manufactured by Chrysler, the engine itself was developed by the division of North American Aviation which would later become Rocketdyne.