1957.12 - 6971357 - Clarksville, Iowa

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Se or | fea ae PROJECT 10073 RECORD CARD 12, CONCLUSIONS 1. DATE 2. LOCATION GO Was Balloon O Probably Balloon 27 December 1957 Clarksville O Possibly Balloon 4. TYPE OF OBSERVATION 3. DATE-TIME GROUP AeTT pee Ran fs heeds aaaieS <n NaCeO XD GroundV.i sual 0 Ground-Rodar Probably Aircraft GMT 28/0425Z2 O Air Vi sual O Air-Intercept Radar O Possibly Aircicraalft ~ SOURCE onom 0O PrWaobs abAslytr Astronomical 5. PHOTOS O Yes O Possibly Astronomical BNio Civilian 8. NUMBER OF OBJECTS | 9. COURSE O...