21st President of the U.S. (1829-1886) hand-written letter dated January 19, 1885 on Executive Mansion stationery signed by Arthur, a thank you note to Dr. E. R. Humphreys, a bi-fold sheet written on both sides, 7-7/8 x 9-7/8 in. (unfolded), together with original envelope, both slightly toned, otherwise very good condition; and Arthur's signature on an Executive Mansion card, 2-3/4 x 4-1/8 in., very good condition; Provenance: letter- R. M. Smythe, 1998; Property from the Duke Family Collection