Compressor balancing machine at NASA's Lewis Research Center (now Glenn Research Center), c. 1970. Full caption: "MULTI STAGE COMPRESSOR IN BALANCING MACHINE IN MACHINE SHOP"
Fullsize image: https://diqn32j8nouaz.cloudfront.net...g_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net..._balancing.jpg
Previously:
https://www.homemadetools.net/forum/...114#post176359
https://www.homemadetools.net/forum/...767#post170965
https://www.homemadetools.net/forum/...888#post179360
https://www.homemadetools.net/forum/...740#post167337
https://www.homemadetools.net/forum/...244#post141921
