Siboni, Roger S., John L. Howes and A. Buell Ish. NEW JERSEY STATE COPPERS: HISTORY, DESCRIPTION, COLLECTING. New York: ANS and C4, 2013. Large 4to, original black cloth, gilt; jacket. xx, 572 pages; illustrated throughout in color. Fine. The modern standard reference, the first work to surpass Maris's 1881 work.