With the issuing of Doctor Who ‘first day covers’ earlier this year, the BBC website gave a nice explanation of what this potentially puzzling format is about:
To the uninitiated it may appear a strange obsession. It is the collection of special stamps on the day of their issue displayed on a special envelope, known as a “cover”.
First day cover fans must make sure they buy them on the day. They stick them onto a special envelope and write the address they want it posted to. It can be just one stamp or the entire series.
Crucially, the envelope needs to bear a special postmark that is only available on the day. For the Doctor Who launch, Royal Mail is offering special postmarks in the hometowns of the 11 actors who have played the Doctor.
Once the handstamp has been applied, the letter can be posted to the…
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