Below is an enlargement that gives a better look at each stand. The first one you can see sitting off to the far left inside a doorway. That stand -- which also appears on page 288 of The Secret Life of Houdini Laid Bare -- has a letter drop box where the public could insert questions for Houdini. In the center is another display with the iconic hand to face image (here it appears to include his second hand). This is only image of that particular stand that I'm aware.
But the one that really excites me is on the far right. This is of a female and in the past my eye has gone right past this because I assumed it to be another performer. But that's Bess! (You can see her in this costume in Silverman).
I'm currently aware of four surviving Houdini lobby stands from his 3 Shows in One (pictured below). The portrait stand on the far left belongs to David Copperfield. The portrait stand on the far right belongs to Arthur Moses. I don't know who owns the $10,000 Challenge (could also be Copperfield). The "Jail for Medium" stand sold last year for $7000 at Potter and Potter's auction of Houdiniana.
The Houdini Museum of New York is located at 421 7th Avenue, 3rd Floor, New York, NY, and houses one of the largest public displays of authentic Houdini memorabilia in the world.
Stay tuned for another Houdini Museum of New York artifact that I think will give us a lot to talk about.