This Day in History: June 27

I have the honor to enclose a cypher which I have been compelled to retain some time for wanting a safe opportunity of transmiting. When more than one word is represented by the same cypher if it should be equivocal, it may be proper to shew which is designed by drawing two strokes under the second & three under the third as for differ 788—difficult 788. tho this will seldom be necessary except now & then at the beginning of a sentence before the sense is sufficiently plain to serve as a direction. [More]

I'm looking forward to the next season of "Turn," but it'll be a while.