Switzerland
Overprinted the Mi: CH P47x
| Country: | Switzerland |
| Type: | Postage stamps |
| Series: | Postage Due (1937) |
| Nominal: | 20 Ct. |
| Year: | 1937 |
| Material: | smoothness backside |
| Perforation: | comb 11½ |
| Mintage: | 280,000 |
