This heavy aluminum precision made Minuteman III wind tunnel model is from 1968 and is mounted on a steel base with placard commemorating a successful launch ‘Test Launch 1’ on August 16, 1968 at Cape Kennedy AFS. Quite unique and large measuring 31” H with an 8” diameter base. This came out of a private collection that had many other significant historical NASA models. Note the testing marks on the tip if the model showing the metal peaking through. Nice original paint with age speckles through out. Second picture shows other models for scale reference and last two photos are infrared shots of a recent test launch.

Some technical specs below along with video showing launch:

Minuteman III is a three-stage missile that can reach targets more than 6,000 miles away. As each stage burns out, it drops away and the next stage ignites. In flight, a sophisticated guidance system keeps Minuteman III on course by slightly adjusting rocket nozzles. At the proper time -- about three minutes after launch -- small rockets slow the third stage. The post-boost vehicle (or "warhead bus") carrying the nuclear payload then maneuvers to a pre-determined release point. With precise timing, it releases the warhead or "re-entry vehicle." Helped by penetration aids that disguise it on enemy radar, the warhead follows a ballistic trajectory to its target.