Bowers, Q. David. SILVER DOLLARS AND TRADE DOLLARS OF THE UNITED STATES: A COMPLETE ENCYCLOPEDIA. VOLUME ONE: SILVER DOLLARS 1794–1873. TRADE DOLLARS 1873–1885. VOLUME TWO: U.S. DOLLARS 1878–DATE. COMMEMORATIVE DOLLARS 1900–DATE. Wolfeboro: Bowers & Merena Galleries, 1993. Two volumes. 4to, original matching pictorial boards. xx, (2), 1096, (2); (8), 2005–3067, (1) pages; text illustrations. Spines sunned, else fine. The standard work on the subject. Ex Wayne Homren library.