I guess I'm just a bit thick, but I haven't been able to figure out what the cancel "Al Cance" describes on Spanish stamps. Google translation didn't help me. Can't find that as a place. Will someone please help me. Thank you.
SCOPE: Extraordinary mail dispatched by administrations to reach the ordinary at a certain point and deliver the correspondence that said ordinary mail could not transfer, for having been deposited in the post office after the departure of the same. http://www.filaposta.com/foro/viewtopic.php?t=1722 Another example: