Аргентина
Aaron de Anchorena (1877-1965) & Balloon.
Fluorescent Ffo (strong at front, weak & dark at back). The back side is very dark under UV lamp
Fluorescent Ffo (strong at front, weak & dark at back). The back side is very dark under UV lamp
| Страна: | Аргентина |
| Тип: | Почтовые марки |
| Номинал: | 20 m$n |
| Год: | 1968 |
| Материал: | National, fluorescent, horizontally grained & vertically laid |
| Размер: | 37 x 27 mm |
| Перфорация: | comb 13½ |
| Тираж: | 2,000,000 |
