Case Evidence · CE-V81-03
Project Sign/Grudge/Blue Book operated at Wright-Patterson
Documented1947–1969 · Official archival history
Record
- Date / period
- 1947–1969
- Reported event / document
- Project Sign/Grudge/Blue Book operated at Wright-Patterson
- Evidence type
- Official archival history
- Original data accessible?
- Yes
- Verification status
- Documented institutional history
- Competing explanations / missing data
- Not evidence of stored alien materials
- Next step
- Identify relevant archival series
- Source ID
- SRC-V81-01
Why this grade
Documented From Case Evidence's Verification status ("Documented institutional history"). Grade rules.