Quite rare prototype model as there isn’t much on this particular model but from my research looks to be similar to manned re-entry rockets USAF and McDonnell were developing during the this period (late 50-60’s) . You can see by the unique shape in the end it corresponds to the early maneuverable re-entry rockets. The mount is from the period and placard says I22 M Aero Ballistic Re-Entry Vehicle McDonnell. The model is made of aluminum and is 19” long—has age old wear on the aluminum body and original graphics on the piece.

During this period of R&D lots of designs were kept secret / destroyed/ and kept by engineers . It is nice to see some of these hard to find models surface one in a while.