Brigham Young reports seeing Joseph's seer stone.
“The History of Brigham Young,” The Deseret News 8 (March 10, 1858): 3
I met with the Twelve at bro. Joseph's. He conversed with us in a familiar manner on a variety of subjects, and explained to us the Urim and Thummim which he found with the plates, called in the Book of Mormon the Interpreters. He said that every man who lived on the earth was entitled to a seer stone, and should have one, but they are kept from them in consequence of their wickedness, and most of those who do find one make an evil use of it: he showed us his seer stone.