erc: who: ACF Industries Incorporated. Nuclear Products - ERCO Division. what: Preliminary Design 30,000 KW Prototype Partially Enriched Uranium, Gas Cooled, Graphite Moderated Nuclear Power Plant (Prototype of an Optimum Plant) for United States Atomic Energy Commission, Idaho Operations Office contract no. AT(10-1)-925 when: 19590300 where: https://digital.library.unt.edu/ark:/67531/metadc67308/