Autograph letter signed to [Caroline Fox? - item derives from collection of letters addressed to "Miss Fox"]

Friend of Horace Walpole. One page, trimmed 12mo. She cleverly expresses an invitation to visit. The wit is obvious, some of the words not. With: autograph note, trimmed 12mo, Richmond Hill, 2 Aug. (no year), saying simply "Yes certainly pray come to us tomorrow - We dine at 9 - this is all the Post hour will give me leave to day". Two items,