| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1989 | 978-1-877998-00-3 | Kenneth Gilman | New Herst Sampson Guide to 19th Century U.W. Cancellations and Postmarks |
| '' | 978-1-877998-01-0 | Lester G Brookman | The United States Postage Stamps of the 19th Century, Vol. 1 1847-1857 |
| 1998 | 978-1-877998-04-1 | Russell F. Hanmer | A Collector's Guide to U.S. Machine Postmarks, 1871-1925, with Examples of Later Types |