Edmund Randolph Letter Signed as Secretary of State on Negotiations for the Treaty of San Lorenzo American politician (1753-1813) who served as both attorney general and secretary of state in George Washington's cabinet. LS signed “Edm: Randolph,” one page both sides, 8 x 9.75, March 25, 1795. Letter to "Mr. Jaudenes, Commissioner of his Catholic Majesty," in part: "I have taken the liberty on many occasions...of inquiring from you, whether you had received from your Country propositions to be made to the President of the United States...Innumerable as have been the obstacles, which the negotiation has undergone, and conscious, as we are, that none of them have proceeded from us, the long time which has elapsed since our Minister in Madrid was first told of the propositions, creates a peculiar anxiety. The difficulty in accounting for this procrastination on any principle is greatly increased...Every hour of delay is a heavy injury to the United States. We ought to understand as soon as possible, what we are ultimately to look for." In fine condition. In 1794, American diplomat Thomas Pinckney was dispatched to Spain to negotiate a settlement to all matters in dispute between the two nations. There he negotiated the Treaty of San Lorenzo, signed on October 27, 1795, which defined the border between Spain and the United States and ensured unencumbered navigation on the Mississippi River.