I've been a fan of coin slide magic since I got the little box-in-box-in-box-in-bag children's trick
in the 60s. I bought this hoping for something new to advance my coin slide work; there was not. The
gimmick is a portable version of the modifications made to suitcoats by magicians back in the
20-30s. Of course, the plastics available today were not available back then, so a little
advancement.
The gimmick is clumsy, but does appear to work. It might be more useful for a
ring vanish-transposition. Before I'd use it for that, I'd refine the gimmmick quite a bit.