HS's journal records BY showing JS's seer stone.
Hosea Stout, Journal, Feb. 25, 1856, Vol. 4, 211, Church History Library, CHL MS 8332
President Young exhibited the seer's stone with which the Prophet Joseph discovered the plates of the Book of Mormon, to the Regents this evening. It is said to be a silecious granite dark color almost black with light colored stripes somewhat resembling petrified poplar or cotton wood bark. It was about the size but not the shape of a hen's egg.