| 000 | 00326nam a22000857a 4500 | ||
|---|---|---|---|
| 008 | 170218b xxu||||| |||| 00| 0 eng d | ||
| 100 |
_aFelix, Ervin J _c Worldwide watermarks and perforations from 1840 to date |
||
| 245 | _aThe stamp collector's guidebook of worldwide watermarks and perforations | ||
| 650 | _aWatermarks | Perforations | ||
| 999 |
_c2273 _d2273 |
||