How did Joel Gilbert make matches with the woodwork and floorboards in FMD’s house?
How many people have sofas of which there are not thousands or tens of thousands of copies?
He lied.
For what it's worth, I think he got the idea from me. I mentioned this idea dozens of times back in 2009. I also used Google street view to post photos of the House based on the address I found in Frank Marshall's FBI file.
I said over and over that positive confirmation could be had from matching the patterns in the floor with the photographs. I think Joel Gilbert was either reading Free Republic at the time, or knew someone who was.
How many people have sofas of which there are not thousands or tens of thousands of copies?
There are tens of thousands of copies, but how many copies do you suppose there are with matching lamps, wall hangings, wooden floors and a phonograph?
It is unquestionably the same photography location.