This is a rare find for aviation enthusiasts and collectors alike. An original 1950?s Bridgeport-Lycoming Avco Employee Instruction Guidebook. This manual is a treasure trove of information for anyone interested in the history and operations of Lycoming aircraft engines. The guidebook covers employee responsibility and behavior making it an invaluable resource for anyone looking to learn more about this iconic aircraft component. Don't miss your chance to own a piece of aviation history with this unique and highly sought-after manual.