Printed report on the Gemini Auxiliary Carbon Dioxide Absorber, produced by the AiResearch Manufacturing Division of the Garrett Corporation for McDonnell Douglas, 39 pages; and a non-Gemini-related bound volume containing 20 color photos, dated 1970, entitled “Residual Propellant Burn Pattern Evaluation.” Also included are 17 glossy photos of various valves and engine components from unidentified aviation programs. In very good condition. RR Auction COA.