Martin Harris said that Smith once found a pin in a pile of shavings with the aid of a stone. Smith had at least two seer stones, including a white stone that he found in about 1819, and a chocolate-colored stone that he found in 1822. His favored stone, chocolate-colored and about the size of an egg, was found in a deep well he helped dig for one of his neighbors. In 1827, Smith said he obtained the "Urim and Thummim" which was composed of two white stones, different from the previous two.