This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Four IUs. Four IUs in the IBM plant at Huntsville IU is closest to the camera IU behind that and perhaps IU the fourth in line The third one back has marking indicating that it is IU or IU or subsequent model larc nasa gov arfutjeiqt id MSFC orgid NASA LARC NIX en Undeadwarrior PDUSGov original upload log page en EdgarDurbin