Thanks for answer. I anderstand two tricks differ, but I wrote about finis on Williams trick. There sure - palming, covering by handkeirchief, placing deck, special rolling, holding handkeirchief, shacking and card reveal. Same what was used on Erdnase. This is why I interesting...
I hope you know about my respect to French sources, and I find first idea on Guyot "Seconde Rcration. Trouver dans le jeu, et au travers d'un mouchoir, une carte quelconque qu'une personne a tire d'un jeu." (I include this on my comments of Erdnase) With high popularity of this author most of tricks with "card through handkeirchief" can be just repeating first method. But now my interests ONLY "special rolling" of handkeirchief.
Unfortunately I do not have Potter's Index, but I will serch source what you suggest.