My take on this is If you still have the cutting on your wall can you take it down and carefully I said carefully take it apart.
Then copy it in the copier on the printer and if that don't work take a photo of the thing and then you get some smart designer to turn the photo into a pattern, then make two copies of said pattern and put the second one where you won't lose it.
Just my 2 penith worth.
***Merlin***