The Lausanne region in the Late 18th Century
Antique Copperplate Engravings
from Baron Zurlauben's topography published
The letters A.P.D.R.
appear on each print, which means that they
were engraved "avec privilège du
roi" - or licensed by the king - this is
an annotation which ones ees only on prints
published before the French revolution. It meant
the print had been approved by the French censures.