This story was in the Guinness Book of World Records for years:
http://documents.adventistarchives.org/Periodicals/RH/RH19660217-V143-07.pdf
They gave him a careful checkup, then—believe it or not—recovered 258 objects from his stomach. Included in the items were 26 keys, 39 nail files, three sets of rosary beads, 16 religious medals, one bracelet, one necklace, three metal chains, one beer-can opener, one knife blade, four nail clippers, three pairs of tweezers, and 88 assorted coins.
Since a state mental hospital was involved, one suspects that the patient had autism spectrum disorder or schizophrenia, which are frequently associated with pica eating disorders.