| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1957 | 978-0-900216-00-8 | Simon D. Tchilinghirian · W.S.E. Stephen | Stamps of the Russian Empire Used Abroad: Pt. 1 |
| 1958 | 978-0-900216-01-5 | '' | Stamps of the Russian Empire Used Abroad: Pt. 2 |
| '' | 978-0-900216-02-2 | '' | Stamps of the Russian Empire Used Abroad: Pt. 3 |
| 1959 | 978-0-900216-03-9 | '' | Stamps of the Russian Empire Used Abroad: Pt. 4 |
| 1975 | 978-0-900216-06-0 | Peter Thomas Ashford | Imperial Russian stamps used in Transcaucasia |