Best wishes from…
In
the Franco-Prussian war (1870-71) the Prussian army issues plain postcards
to their soldiers - to be used for short messages to the family at home.
The new form of communication soon becomes popular as a holiday souvenir.
Initially the address field occupies one full side of the card. In 1905
this is reduced to half a side, and the illustrated postcard comes into
its own.

