Alfred Krupp (1812-1887). Manuscript letter to "Herr Doctor" [Hirschland?]

dated 13 May 1861, bifolium of blue paper of which one page writte, signed "Alfred Krupp", on stationery "Gussstahlfabrik bei Essen in Rheinpreussen", unfolded 45 x 28.5 cm. (with thanks for help provided).

With another 3 related letters, 1 manuscript card, 1 announcement of the engagement of A. Krupp and B. Eichhoff (in envelope) and 3 photos. (total 9)