Discovered this at the 10/10/10 @ 10:10 am in Silverdale, Washington event, GC2EG6T. Met some of the geocachers from my area. Its lots of fun to see just how far some of these trackable items have gone.
This was an interesting idea. I didn't actually see the coin, but rather a standin. Interesting way to both keep your coin safe and allow its number to travel.