Buying Fiber and dye handmade book with samples Barbara N Me on Lichening & Learning signed book

This fascinating book from the 1970s is an insight into the spinning and dying of fibers with the use of Lichen. The pages are filled with tiny little bags of the Lichen and a sample of the color that it creates after dying. This little bound book is 9 " x 51/2 inches. The book is signed by both authors, the pages are not numbered, and this copy from 1975 contains a personal letter to the person that received the book. One of a kind and rare find.