BB SIGHTINGS - 1957 - BY MONTH


NARA-PBB1-161 - January Sightings
NARA-PBB1-162 - February Sightings
NARA-PBB1-163 - March Sightings
NARA-PBB1-164 - April Sightings
NARA-PBB1-165 - May Sightings
NARA-PBB1-166 - June Sightings
NARA-PBB1-167 - July 1-20 Sightings
NARA-PBB1-168 - July 21-31 Sightings
NARA-PBB1-169 - August 1-19 Sightings
NARA-PBB1-170 - August 20-31 Sightings
NARA-PBB1-171 - September 1-17 Sightings
NARA-PBB1-172 - September 18-30 Sightings
NARA-PBB1-173 - October 1-14 Sightings
NARA-PBB1-174 - October 15-25 Sightings
NARA-PBB1-175 - October 26-31 Sightings
NARA-PBB1-176 - November 1-4 Sightings
NARA-PBB1-177 - November 5 Sightings
NARA-PBB1-178 - November 6 Sightings
NARA-PBB1-179 - November 6-8 Sightings
NARA-PBB1-180 - November 9-10 Sightings
NARA-PBB1-181 - November 11-15 Sightings
NARA-PBB1-182 - November 11-15 additional Sightings
NARA-PBB1-183 - November 16 - 24 Sightings
NARA-PBB1-184 - November 16-24 additional Sightings
NARA-PBB1-185 - November 25 -30 Sightings
NARA-PBB1-186 - November 25-30 additional Sightings
NARA-PBB1-187 - December 1-4 Sightings
NARA-PBB1-188 - December 5-9 Sightings
NARA-PBB1-189 - December 10-15 Sightings
NARA-PBB1-190 - December 16-31 Sightings