Wilson mentions an instance of gastrotomy which was performed for the extraction of a fork swallowed sixteen years before.

There is an interesting case in which, in a delirium of typhoid fever, a girl of twenty-two swallowed two iron forks, which were subsequently expelled through an abdominal abscess.

A French woman of thirty-five, with suicidal intent, swallowed a four-pronged fork, which was removed four years afterward from the thigh.

For two years she had suffered intense pain in both thighs.

In the Royal College of Surgeons in London there is a steel button-hook 3 1/2 inches in length which was accidentally swallowed, and was passed three weeks later by the anus, without having given rise to any symptom.
Among the insane a favorite trait seems to be swallowing nails.