My little brother is currently writing a high school paper on the differences between cinematic depictions of Roman Legions and their actual appearance. All my books on the subject are currently in storage, so I'm asking here, the highest density region of history-literate persons I know of, on his behalf for any sources describing different armors, outfits, and uniforms for legionary personnel during different eras, ideally including illustrations. He'll be comparing to only several of the better known movies like Ben-Hur and particularly Gladiator. Any sites, or books (preferably ones that would be available in a municipal library) which detail any of that would be welcome. Thanks in advance.