Lunar Orbiter 3 photographed the Moon from February 15 to 23, 1967, and confirmed safe landing sites for the Apollo program.
Notes on verification
Multiple independent, authoritative sources (NASA Science, NASA.gov, Wikipedia, LPI) corroborate both the mission dates and its site-confirmation purpose. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.735 clusters=2 claim_tier=everyday]
Sources
- Moon photos from the 1960s were developed in space—here's how (seed:science_and_space)
- https://science.nasa.gov/mission/lunar-orbiter-3/ (corroboration)
- https://www.lpi.usra.edu/resources/lunarorbiter/ (corroboration)