Project Blue Book Microfilm Rolls Index: Case Files of Individual Sightings

This document is a 1976 publication by the National Archives and Records Service, serving as an index for Microfilm Publication T1206, which contains the case files of individual sightings from Project Blue Book. The index provides a comprehensive breakdown of microfilm rolls, mapping specific date ranges and geographic locations to file numbers. It covers the period from the summer of 1947 through December 1969. Beyond the individual sighting case files, the document lists various administrative files, technical reports, and briefing notes associated with the Air Force's investigation into unidentified flying objects. These include reports from Project SIGN, Project GRUDGE, and Project TWINKLE, as well as various staff studies, congressional briefings, and policy documents. The index also categorizes records from the Inspector General, USAF Office of Special Investigations (OSI), organized by chronological and district files, as well as overseas commands. Finally, it provides a summary of photographic records and a list of evaluations for various sightings, categorizing them by location, observer, and the nature of the evaluation (e.g., balloon, meteor, hoax, or unidentified).