cover 1800 (23 May) entire letter from Krumbach (Austria) to Gen. Le Febvre, Paris showing "4E DON/ARM. DU RHIN" in red, 1800 (22 Mar.) entire letter (part of address erased) from Daniken (Switzerland) showing "8E DON/ARM. DU RHIN" in blue, and 1800 (c.) undated entire to Strasbourg showing the same h.s. in black. Good to fine strikes