First of the group (top right) I dug was in 2001, and most recent (bottom left) Nov. 6th, 2013, until I added my 5th last week. (bottom right) The middle was 2006, and top left 2008. So the nice ones come slow, but I always like adding one to the group.
The first military button I found metal detecting was a King's American Regiment and was one of very few to exist at the time. I've been hooked on looking for Rev War ever since and that's why these buttons have a a little extra meaning to me. They take me right back to my first Fall digging.