HISTORY - AUGUSTA Marie, Louise, Catherine (1811 - 1890) - Autograph letter signed

Queen of Prussia and Empress of Germany.
Autograph letter signed "Augusta" written in German and sent to secret advisor Pertz in Berlin. Baden October 25, 1866, 2/3 p. in-4. Beautiful piece.
Wishes and congratulations on the occasion of the doctoral jubilee of his correspondent.