There are several accounts containing descriptions of the Nephite interpreters. In one account, J.W. Peterson and W.S. Pender interviewed Joseph's brother William in 1891 and reported:

          Among other things we inquired minutely about the Urim and thummim and the breastplate. We asked him what was meant by the expression "two rims of a bow," which held the former. He said a double silver bow was twisted into the shape of the figure eight, and the two stones were placed literally between the two rims of a bow. At one end was attached a rod which was connected with the outer edge of the right shoulder of the breast-plate. By pressing the head a little forward, the rod held the Urim and Thummim before the eyes much like a pair of spectacles. A pocket was prepared in the breastplate on the left side, immediately over the heart. When not in use the Urim and Thummim was placed in this pocket, the rod being of just the right length to allow it to be so deposited. This instrument could, however, be detached from the breastplate and his brother said Joseph often wore it detached when away from home, but always used it in connection with the breastplate when receiving official communications, and usually so when translating as it permitted him to have both hands free to hold the plates. (J.W. Peterson in The Rod of Iron I:3 (February 1924), 6-7.)