First elected President of the First Portuguese Republic (1840–1917). Manuscript DS, in Spanish, signed “Manuel d’Arriaga,” one page both sides, 8.75 x 12.5, September 7, 1911. An official letter of state to Bolivian President Eliodoro Villazon announcing Arriaga’s election as president. In fine condition, with central horizontal and vertical folds and punch and binding holes to left edge. RR Auction COA.