Regarding the S.W. Chubbuck token in silver, Rulau's NY1060, it is no wonder Mike Greenspan never located an example. Mark Borckardt and I checked a plated example of the S.W. Chubbuck Collection (John W. Haseltine, 2/1873) and found the following information under lot 23 in the Storecards section:

The 20 refers to the size of the token (1 1/4 "). The Chubbuck sale was one of Haseltine's best efforts, and John Adams awarded it an A rating. The catalog includes many foreign and ancient coins, Washington pieces (including a Funeral Medal in gold) and tokens and medals. Colonials and patterns are well-represented (1792 half disme, N.E. shilling). The extensive U.S. section includes dollars of 1794, 1836, 1838, 1839, 1851, and 1852 and the half dollars include 1796 and 1797, though these seem to be low-quality examples. Quarters were probably the strongest series, with all the early key dates (1796, 1804, 1823, and 1827) represented. Many of the quarters were high quality examples. The plate of large cents Al Boka referred to includes images of three 1793s, an 1804, 1809, 1811, 1821, and 1832. The 1832 was a proof pedigreed to the Mortimer Mackenzie and Mickley collections. Chubbuck seems to have been a numismatist of the first order. Interesting stuff!

To read the earlier E-Sylum article, see:MORE ON S. W. CHUBBUCK(/www.coinbooks.org/esylum_v16n21toc.html)