I have always been fascinated by the patent medicine peddlers (otherwise known as snake oil salesmen)who offered a magic pill for anything that ailed you. Their advertising is very collectible ,be it magazine ads or trade cards. But here we have something a little different -- a booklet of 29 pages of dense text broken up by black and white art, all of which tells the story of Charles Wills who went to India, discovered the Cake of Healing and used it to make pills so fine he called them "the best pills in the world." What's interesting about it is that it's told as a long story replete with many exotic details.Quite a page-turner too! the booklet is not often seen and is clean and attractive save small loss of paper to upper front corner. It measures 6"x8". Wills eventually sold his magic formula to Wells, Richardson & Co. which also owned Diamond Dyes. Ads for the dyes are at both back and front.