Claim: Cellestine Hannemann (pioneer of using pressed flowers and other botanical materials to create an entire picture from these natural elements) designed a press for flowers and published a book, Glorious Pressed Flower Projects, in 1991.
Evidence: She followed with publication of a guide book, Glorious Pressed Flower Projects, in 1991 that shared her technical expertise. In the 1970s, Hannemann designed a unique spring-loaded press to preserve and gently but expertly press flowers. Oshibana is the art of using pressed flowers and other botanical materials to create an entire picture from these natural elements. 
Oshibana is the art of using pressed flowers and other botanical materials to create an entire picture from these natural elements. She manufactured a unique press incorporating polyester materials to cushion the plants that became known as "Cellestine's Press," and authored a book that is a popular reference guide for plant pressers and Oshibana artists. She followed with publication of a guide book, Glorious Pressed Flower Projects, in 1991 that shared her technical expertise.