An example of Pollock #2082, the Martha Washington Quarter, has been discovered and was purchased by Michael Byers of Byers Numismatic Corp. (mikebyers.com). This is one of two known examples in private hands. There is one set of a Dime, Quarter and Half struck by the Martha Washington dies that are permanently housed in the Smithsonian Institute, embedded in blocks of lucite. According to United States Pattern and Related Issues, by Andrew W. Pollock III, "the only trial pieces purported to have survived metallurgical testing in 1965 were the Dime, Quarter Dollar, and Half Dollar equivalent strikes in copper-nickel clad over copper." Click for more info.