Cellestine Hannemann

Cellestine "Sally" Hannemann (born March 28, 1924) is an American author and pioneering figure in the methodology of Oshibana art. Hannemann, née Hofmann, born in Chicago, Illinois, and currently living in California, is best known for developing new processes in the pressing of botanical materials to reduce discoloration and shrinkage. 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. Hannemann also wrote two novels.

In the 1970s, Hannemann designed a unique spring-loaded press to preserve and gently but expertly press flowers. This press was a major advancement over traditional pressing methods that had been practiced since the Victorian era of flower pressing. She followed with publication of a guide book, Glorious Pressed Flower Projects, in 1991 that shared her technical expertise. This book is used as a source book on the art of pressed flowers. Hannemann has influenced the work of other pressers who employ her specific techniques for botanical preservation and application that are described in her book. In 1996, "Handcraft Illustrated" quarterly published an article with Hannemann's instructions for making this cushioned and padded press and included tips for creating pressed materials for Oshibana works of art.

...
Wikipedia