Sounding rocket gyroscope assembly likely affiliated with the Black Brant rocket series, measuring 7.5" long and 5" in diameter, with a Space Vector Corp. label on the side: "Unit: Mars, Model No. 529235, Serial No. 67-1R1, Date of Mfr. O/H Oct. 1986, Customer: NASA/Langley, Contr. No. L-0168C."
