Not all the details about the translation of the Book of Mormon are known, but Joseph and his scribes did mention his use of two instruments. One was the Urim and Thummim (called the “interpreters” in the Book of Mormon), which Joseph received with the plates and “which consisted of two transparent stones set in the rim of a bow.” The other instrument was a seer stone that Joseph had found some years before. Both of these instruments helped him translate the plates “by the gift, and power of God.”