Selfridge AFB, Mich, July 1951

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PROJECT 10073 RECORD CARD 1. DATE 2. LOCATION 12, CONCLUSIONS 0 Wes Balloon 30 July 1951 Selfridge AFB, Mich Probably Balloon oo Possibly Bolloon 3. DATE-TIME GROUP 4. TYPE OF OBSERVATION agc Loco! Bet 1114Z & 11322 0 Ground- Vi sual X Ground-Radaor Wos Aircroft Probcbly Aircroft OD Ai Vi suol r O Air-Intercept Rador Possibly Aircroft Was Astronomical coc Probably Astronomical Possibly Astronomical Pagati n tt No Radar Observers Orher__Anomalous Pro/_ o0o@m@ 7. LENGTH OF OBSERVATION 8. NUMBER...