They come from all over. People send them in from all over the US and from several countries as well. I organize them, do what I can to preserve them, advertise them and give them to the cars owners for free with proof of ownership.
I seem to have gotten a bit of a reputation for this over the years, there have been close to 350 matchups in the last 11 years or so, and I still have over 3000 items here waiting to be claimed......
Barry