Model of a Letter of Recommendation of a Person You are Unacquainted With was written in 1777, retrieved from The Humour of America (1909).
Paris, April 2, 1777.
SIR,—The bearer of this, who is going to America, presses me to give him a letter of recommendation, though I know nothing of him, not even his name. This may seem extraordinary, but I assure you it is not uncommon here. Sometimes, indeed, one unknown person brings another equally unknown, to recommend him; and sometimes they recommend one another! As to this gentleman, I must refer you to himself for his character and merits, with which he is certainly better acquainted than I can possibly be. I recommend him, however, to those civilities which every stranger, of whom one knows no harm, has a right to; and I request you will do him all the favour that, on further acquaintance, you shall find him to deserve. I have the honour to be, etc.
Benjamin Franklin.
