Houdini's lockpick

Here's a photo of a genuine Houdini lockpick from his 1909 book, Handcuff Secrets. It's popular to think that Houdini wrote Handcuff Secrets as a backdoor exposé of his competitors; but this photo shows that he really did offer up some of his own methods and secrets in the book.

Many of Houdini's lock-picking tools survive today in private collections. Maybe even this one.