| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Local Posts of the Midland Counties to 1840 | 978-0-9513311-2-5 (0-9513311-2-4) | 1993 |
| Undated Circular Marks of the Midland Counties | 978-0-9513311-3-2 (0-9513311-3-2) | 1996 |
| Undated Circular Marks of the Midland Counties | 978-0-9513311-1-8 (0-9513311-1-6) | 1989 |