4:15-5:30 p.m. (PDT).  2 AF pilots Capt. L. R. Hadley and Lt. D. A. Swimley, and AF Capt. W. T. Perske, saw visually and with binoculars 2 circular or spherical silvery objects 60-100 ft diameter at 12,000 and 18,000 ft drifting E to W on a 15-mile track passing overhead, darting and dogfighting at estimated 400-450 mph, the upper object dropping from 18,000 to 12,000 ft, at the end replaced by 8 more similar objects appearing in pairs in the W about 15-20 miles distant.  No sound.  (BB Microfilm Misc Roll 1, pp. 538-541) 1 hr 15 mins + ? 3 witnesses 1/3 to 1 Full Moon   binocs 

Frames 538-541 below beginning with

http://www.bluebookarchive.org/page.aspx?PageCode=MISC-PBB1-538

Pages 542-564 Tentative Observers Questionnaire (not shown but printable from doc links below)

 

Page ID (PID) : MISC-PBB1-538
Collection : Other Official Microfilms
Roll Description : Misc Blue Book Files Roll 1