ROSE PAPERS. Vol. XXI (ff. 248). Correspondence with William Schaw Cathcart, 1st Earl Cathcart, as Ambassador, and with Louis Casamajor as Secretary of Embassy (and Minister Plenipotentiary ad interim) to Russia; 1816-1819. Large folio. General Sir William Schaw Cathcart, 1st Earl Cathcart: Cor...