Early 911 at the Porsche museum

[HONEYMON57ER]

Just back from the museum last week and was sitting having there having a coffee next to the glass wall behind which they have cars in prep for display. One of the guides comes along and starts saying about an early 911 (no.57) which was
A barnfind in Berlin I think he said. Anyway he said Porsche purchased it to restore it after the documentary had been made about it.

I was just wondering if anyone knows any more about it? Apparently it's in a bit of a state but I couldn,t see it properly
Just looked very dusty and maybe brown or orange. He made it sound like the documentary had already been shown on German TV