Herzog von Reichstadt (1811-1832). Autograph notes from his military education, about the defence of Vienna. O. O. 2 SS. auf gefalt. Bogen, halbbrüchig beschrieben. Folio. Auf S. 1. Echtheitserklärung mit rotem Lacksiegel (dat. Wien, 20. V. 1840) in der linken Seitenhälfte.
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In German: "An army of 40 battalions, 60 squadrons, 60 guns is ordered to take down an enemy position on the Wienerberg, being an Italian one of 60 battalions, 80 squadrons and 100 guns. - There are three ways to position oneself on the Wienerberg [...]". - With handwritten certificate of authenticity by the Duke's chamberlain Baron J. K. von Moll: "That these lines are written in the own hand of the Duke of Reichstadt is certified by the undersigned, who served the late Duke as chamberlain during the last two years of his life".