comprising of the following slides as labeled:

Diatomaceae, Exhibition Circle, 50 Forms, 200 Styraclor, K.D.KEMP

Diatomaceae, Exhibition mount 155 Rosette, (Styrax), Febuary 1995 K.D.Kemp

Diatomaceae, Exhibition, Star, 25 Forms Circle, K.D.Kemp

Diatomaceae, 100 Type, K.D.Kemp

Butterfly Scales, Flowers, 100 Pieces, 4/5/94' K.D.Kemp

you can read about Claus Kemp here: https://isdr.org/in-memory-of-our-friend-and-colleague-klaus-kemp/