Postage to the United Kingdom or Ireland is 90 centimos for a standard letter or postcard. Stamps are on sale at
Tobacconists and the Post Office. You may also be able to buy stamps at the shop where you buy your cards.
Stamps for the official national postal service carry the words “Correos Espaņa” and, unless your stamps have
these words on them they cannot be posted in the post boxes on the roadside or at the Post Office.
You can’t miss the official post boxes ... they are bright yellow - although some newer ones are green - just
to confuse you! There are two slots in some into which you can post letters and cards, one is for internal mail
and the other is for overseas post. The one marked "Extranjero" is the one you want.