Of course, "3 Show in One" is what Houdini called his full evening show of 1925-26. Coincidence? Or is this where Houdini got the idea for the name? Or maybe this just lodged it in his subconscious? Whatever the case, it's kinda wild to see this phrase on a Houdini ad three years before it became the name of his actual show, amirite?
Below is what the Globe Theater looks like today.
For more on Houdini's The Man From Beyond roadshows (also known as The Houdini Wonder Show), click the first related link below for an excellent deep dive by Dean Carnegie at The Magic Detective.