1. DATE - TIME GROUP 2. LOCATION 20 Aug 67 20/1530Z Philadelphia, Pa. 1 3. SOURCE 10. CONCLUSION Civilian INSUFFICIENT DATA FOR EVALUATION 4. NUMBER OF OBJECTS Form 164 sent to observer over 60 days ago and not returned 1 as of date, case re-evaluated when form returned. 5. LENGTH OF OBSERVATION 11. BRIEF SUMMARY AND ANALYSIS 4 minutes Observer stated object "zigged" right by him and he didnot 6. TYPE OF OBSERVATION get to see color or shape of it. Further, observer stated Ground Visual he observed the object for 4 minutes but did not see color or 7. COURSE shape of it. He did not mention manner of disappearance of the East object. 8. PHOTOS □ Yes ☒ No 9. PHYSICAL EVIDENCE □ Yes ☒ No