Napoleonic War. Royal Service Letter “K.D.S.” sent from Ahrensburg to Tremsbüttel 15 March 1814, noted “Durch reitende Bothen von Dorf, zu Dorf saglich zu besorgen, Abgesendt von Ahrensburg d. 15te Martz, des Morgens 9 1 2 Uhr” and with two was seals on reverse. Rare letter.