This roof tile is to ward off evil. (Oni is the evil being.)
This came from a friend's house when it was destroyed to make way for a new house. It's basically old, but immediate post war construction, so not "antique". Though it might have been re-cycled from the rubble. But we don't know.
The wood pedestal is lovely and also old. If you want the wood pedestal separately, it is 2500 yen.
If you want the roof tile separately, it is 1200 yen.
This combination of drift wood and protection against evil has been sitting at our entrance for about 6 years.
Don't know how well it wards us against evil, but it looks quite nice!