Denmark
10 øre stamp of 1896 surcharged "20" with a violet handstamp
| Country: | Denmark |
| Type: | Postage stamps |
| Series: | Københavns Telefon-Kiosker |
| Nominal: | 20 øre |
| Year: | 1910 |
| Perforation: | 11½ |
Københavns Telefon-Kiosker
