Keywords: Photograph with caption "Contractor's mixer plant, Lock No. 7." - NARA - 282435.tif Scope and content General notes 282435 Local identifier War Department Office of the Chief of Engineers St Paul District 1866 - 09/18/1947 NARA's Great Lakes Region Chicago NRDA 7358 South Pulaski Road Chicago IL 60629-5898 1935-05-01 Record group Record Group 77 Records of the Office of the Chief of Engineers 1789 - 1999 Record group ARC 406 Operations and Maintenance Files Relating to Lock and Dam Numbers 3-10 of the Mississippi River Nine Foot Channel Project compiled 1931 - 1943 Series ARC 282367 File unit 406 1 Misc Corr --L D 4 ca 1931 - ca 1943 File unit ARC 282428 Variant control numbers NAIL Control Number NRDC-77-SLD3-406 1 MISCCORR-4 yes Other versions <gallery> File Photograph_with_caption_ Contractor's_mixer_plant _Lock_No _7 _-_NARA_-_282435 tif tif File Photograph_with_caption_ Contractor's_mixer_plant _Lock_No _7 _-_NARA_-_282435 jpg jpg </gallery> NARA-cooperation PD-USGov NARA TIF images with categorized JPGs |