Our cover picture ...
… shows two new postage stamps of Deutsche Post with atmospheric motifs. Claudia Hinz contributed to one of them with her photo of a rainbow fragment. Under
bit.ly/2IJM8JU further information about these stamps is available.
Stamp design: Bettina Walter, Bonn
Motifs: Mirage of the Sun: Photo © Melia Ritzal, Ostfildern
Rainbow fragment: Photo © Claudia Hinz, Schwarzenberg
