| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Ordinary mail by diplomatic means during the Siege of Paris 1870-1871 | 978-9963-579-72-3 (9963-579-72-8) | 1995 |
| Unusual Mail in Occupied France 1870-1871 | 978-9963-579-79-2 (9963-579-79-5) | 2000 |
E C. · E. Cohn · E. M. · Ernst Cohn · M.C.