Postbox Saturday | La Fresneda

This is the tiny post office in the village of La Fresneda (Teruel, Spain). 

I like the fact that there are two mail slots on the door. One of them is for posting your letters in (picture below). The other one... is it for getting letters addressed to the post office?

I cannot ask it, because the post office was closed. Actually, it is quite difficult to find it open. The opening hours (?) are from 13:45 to 14:00.