“These small ’rooms’ that are raised up from the ground are all over the Spanish countryside. Many of the old houses have one. What was/is it used for?”
"They’re grain stores called “hórreos.” A vast majority of them are located in “Galicia” and “Asturias” the northwest of Spain. But there are differences between them. A common “hórreo” in Asturias used to be square, while those in Galicia are rectangular."
...film container. No mine has this particular imprint on the housing. For pressure you install AP or frog type device under, and pressurize with AT.
They are used all over to prevent damage to ships in general.
We use yokohama fenders while repairing the regular fenders on the jetty.