High Quality Content by WIKIPEDIA articles! The Mississippi class of battleships comprised two ships which were authorized in the 1903 naval budget: Mississippi and Idaho. They were the last pre-dreadnought battleships to be designed for the United States Navy; however, they were not the last to be built as one more ship of a prior design was completed later under the 1904 naval budget. While the quality and technology of the weaponry and armor were first-rate, these ships included a variety of main, intermediate, secondary, and tertiary gun sizes in a pre-dreadnought configuration which became obsolete before the ships were completed.