Joseph in Times and Seasons reports translated the Book of Mormon through the U&T.
"Church History," Times and Seasons 3, no. 9 (March 1, 1842): 707
These records were engraven on plates which had the appearance of gold, each plate was six inches wide and on tin. They were filled with engravings, in Egyptian characters and bound together in a volume, as the leaves of a book with three rings running through the whole. The volume was something near six inches in thickness, a part of which was sealed. The characters on the unsealed part were small, and beautifully engraved. The whole book exhibited many marks of antiquity in its construction and much skill in the art of engraving. With the records was found a curious instrument which the ancients called "Urim and Thummim," which consisted of two transparent stones set in the rim of a bow fastened to a breastplate. Through the medium of the Urim and Thummim I translated the record by the gift, and power of God.