| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Stamps of the Russian Empire Used Abroad: Pt. 1 | 978-0-900216-00-8 | 1957 | W.S.E. Stephen |
| Stamps of the Russian Empire Used Abroad: Pt. 2 | 978-0-900216-01-5 | 1958 | " |
| Stamps of the Russian Empire Used Abroad: Pt. 3 | 978-0-900216-02-2 | 1958 | " |
| Stamps of the Russian Empire Used Abroad: Pt. 4 | 978-0-900216-03-9 | 1959 | " |