That's an amazing story...I love'em!
I posted an article recently (can't find it now) about a festival that is held anually in a region of England that uses reindeer horns and everyone parades around all day with these horns on their heads. Problem is, no-one can remember why they do it...and declare that they had done it as long as anyone can remember. A scientist dated the horns and they're 900 years old. After the 'parade' the horns go back into storage until the next years parade.
BTW, We can now 'paint the doors' again using DNA.
I love those types of stories, too. :-) That’s amazing the horns held up for 900 years. :-0