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' PROJECT 10073 RECORD CARD
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t. DATe 2. LOCATION 12. CONCLUSIONS
0 Wos oalloon
57 La ort i nnesota P robab ly Ball oon
. I. CATE•Tia&! GROUP L TYPE OF OBSERVATION Possi bl y Ball o on
Local------------~---------- ~Cirounci-Visual 0 Ground-R a d ar 0 Was Ai,.cr a h
C P ro b a bly Aircraft
tJ Ai.,..Vi a~cal 0 A ir- Int e rcep t Rod or 0 P os s.ibly Aircraft
~~~~~3=~==~~~~----~~~~~1
0 Was Astronomi c a l
a v ••