From Last Dodo Catalogue



The Christmas stamps, or December stamps as we call them, are valid on seasonal mail in December, until 6 January (Epiphany that is not a festivity here). After that, they remain valid, but you have to add the discounted amount.
After 6 January (issues since 2010) the discount on the ordinary basic inland tariff has been 10 cents.
The word 'december' identifies the tariff.