C.M.J.  [identity unknown] engraver.
          This artist, the Charbneau Gold Dollar and its
          issuer, Jules Charbneau, was was subject of a book
          by Jeff Shevlin and WilliamD. Hyder (see below).
          They speculated the engraver was Carl M. Johnson.

          M   E   D   A   L   S

1940 Charbneau Gold Dollar (designed by Jules Charbneau,
          modeled by CMJ). . . . HK 487, HK 488, HK 489, HK 490
          Auctions:. . . . PCA 46:135-136, PCA 49:255, PCA 61:129,
                    PCA 70:491

          N U M I S M A T I C   R E F E R E N C E S

M20 {1963} Hibler and Kappen 487–490, p 72.
M66 {2011} Shevlin (Jeff) and Hyder (William D.) Charbneau So-Called Dollars.            
          Carmichael, CA: So-Called Books (2011) 74 pages, color illus.