British composer (1842–1900) best known for his collaborations on more than a dozen classic comic operas with librettist W. S. Gilbert. ALS, one page, 4 x 5.75, no date. Brief letter of invitation. In full, “Next Tuesday morning before 2, I am at home & at your disposal for a talk.” Double cloth matted with a color portrait of Sullivan, and a small plaque, to an overall size of 19.5 x 16.5. In fine condition, with intersecting folds, one through a single letter of signature, and a few light creases. R&R COA.