I remember watching Daryl perform this at the Castle many moons ago (when we were both "kids")...
it's one of the few routines I classify as being "real magic" (I doubt there's more than a dozen
effects in my mind, that meet that standard).
I tried to learn this bit 40 years ago,
using the poster but got lost and ultimately gave up. So glad that it's in video form now. I think
I have a chance, even with my old stiff hands.