| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2002 | 978-0-9652413-0-4 | Douglas Winter ยท Michael Fuljenz | Type Two Double Eagles 1866-1876: A Numismatic History and Analysis |
| 1999 | 978-0-9652413-1-1 | Douglas Winter | Type two double eagles, 1866-1876: A numismatic history and analysis |