Wayne County Inquirer reports that Joseph used a white stone to translate BOM.
"A fellow by the name of Joseph Smith," Wayne County Inquirer, Pennsylvania, c. May 1830 in Cincinnati Advertiser and Ohio Phoenix, June 2, 1830, accessed July 8, 2021
A fellow by the name of Joseph Smith, who resides in the upper part of Susquehanna county, has been, for the last two years we are told, employed in dedicating as he says, by inspiration, a new bible. He pretended that he had been entrusted by God with a golden bible which had been always hidden from the world. Smith would put his face into a hat in which he had a white stone, and pretend to read from it, while his coadjutor transcribed.