Complex sentence: According to Chase, Joseph Smith collaborated with seer Samuel T. Lawrence, who was able to "see" not only the gold plates but also "saw" the pair of spectacles, which in Mormonism would later be identified with the biblical Urim and Thummim.
Split into simpler sentences: According to Chase, Joseph Smith collaborated with seer Samuel T. Lawrence. Lawrence who was able to "see" not only the gold plates but also "saw" the pair of spectacles, which in Mormonism would later be identified with the biblical Urim and Thummim.