||1787 COPPER New Jersey Copper, Hidden WM in Sprig AU58 NGC. M. 62-q, W-5350, R.3. 151.2 grains. Specialists in the New Jersey series are familiar with the WM discovery, a New Jersey copper with those initials below the horse head, identifying the engraver as Walter Mould. The new discovery is known today as Maris 62.5-r. More recently, study has shown that the present die was also signed, with the leaf sprigs hiding the WM signature. Those letters are faintly visible on this large planchet piece. The surfaces are light brown with trivial planchet roughness. Close inspection reveals traces of faded mint red on this census-level example. Ex: Eric P. Newman Numismatic Education Society.
Realized $9,987.50. Description courtesy of Heritage Auctions.