| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1978 | 978-0-916316-00-6 | Charles Terwilliger | The Horolovar 400-day clock repair guide |
| 1975 | 978-0-916316-02-0 | '' | Clockmakers' buying guide: A "where to-buy-it" service for clock repairmen |
| 1987 | 978-0-916316-04-4 | Charles Terwilliger · Joseph Fanelli | Century of Fine Carriage Clocks |