Along with other items that have been listed separately from the collection of Mr. D. Durham— a NASA engineer whose work on EFI technology. This little metal booster model was part of his collected items from his time there. It appears to be a rocket booster —almost something for the LM or a variation in the design. As Mr.Durham was designing Exploding Foil Initiators for the Apollo mission I imagine this small booster was something designed internally as reference. I have left it as is with some oxidation on the surface but it could be cleaned up and shined up if you wanted to. Measures: 5” H with a 1.5” diameter Made of steel and very precisely machined