G. S. Ryan
3 published titles
The cancellations of Hungarian post offices on the first five issues of Austrian stamps, 1850-67, during the Austrian administration
1 edition
- ISBN: 0900631090
- Royal Philatelic Society
- 1980
- Details
The cancellations of Hungarian post offices on the first isue of Hungary, 1867-1871
1 edition
- ISBN: 090063118X
- Royal Philatelic Society
- 1988
- Details
The rarest mixed frankings of Hungary
1 edition
- ISBN: 0900631260
- Royal Philatelic Society
- 1992
- Details
