USAF record 28974648

UFOB INDEX CARD A155-UFOB-600-57

1. DATE 12 Nov 57 2. LOCATION Alpena, Mich. 3. DATE-TIME GROUP 12/13, 57 Nov 57 4. TYPE OF OBSERVATION Ground-Visual 5. PHOTOS No 6. SOURCE Civilian 7. LENGTH OF OBSERVATION 10 to 15 seconds 8. NUMBER OF OBJECTS One 9. COURSE W to E 10. BRIEF SUMMARY OF SIGHTING One cigar shaped aluminum object seen flying W to E and in sight for 10 to 15 seconds. 11. COMMENTS [HW: Concur with Reporting Officer that this was a F-IOZ] 12. CONCLUSIONS Was Balloon Possibly Balloon Possibly Balloon Was Aircraft Possibly Aircraft Possibly Aircraft Was Astronomical Possibly Astronomical Possibly Astronomical Other Insufficient Data for Evaluation Unknown

AISOP Form 5 (15 Oct 54)