| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1980 | 978-0-9604888-0-3 | Theodore R. Crom | Horological Shop Tools: 1700 to 1900 |
| 1987 | 978-0-9604888-2-7 | Theodore R Crom | Horological and other shop tools, 1700 to 1900 |
| 1989 | 978-0-9604888-3-4 | '' | Trade catalogues, 1542 to 1842 |
| 1994 | 978-0-9604888-5-8 | Theodore R. Crom | An Eighteenth Century English Brass Hardware Catalogue |