Set of four samplers by the same stitcher!!

Here on The (American) Antiques Roadshow from Pittsburgh, a set of four samplers by the same stitcher! I don`t ever remember seeing a set of four before. This is an important find, and personally, I think he undervalued them.

http://www.pbs.org/wgbh/roadshow/video/index.html

I tried to get some screen captures, but they were very blurry, and also there is the usual copyright concerns, so they are visible only at the link. They are the first item up in the show.