Professor Cannonball Guy,
The fellow that posts on occasion on the forums here, that came to mind first as possibly the digger you had referenced, is the finder of the rare 1813 Charleston Carpenter tag shown here on TreasureNet.
http://forum.treasurenet.com/index.php/topic,68029.0.html
The second 1813 Charleston Carpenter tag that I mentioned, was found by a certain famed Virginia relic hunter, well known throughout the collecting and digging circles. This particular tag is one that I had the distinct pleasure to personally hold in my hand, the very same day as recovered.
The excavating contractor (JP) that I had mentioned, was featured in an article in
North South Trader's Civil War around about 2000 or 2001. Mr. JP had personally found I believe 40+ tags around that time from the dirt removed during just one large construction project.
Another well known Charleston digger with an amazing collection of excavated slave tags, is musician and entertainer Rudy "Blueshoes" Wyatt. We note once again yet another example of the rare 1813 Charleston Carpenter tag in octagon shape. Additionally, an example of one of the early round tags manufactured by C Prince is shown. In my personal collection, I have an 1801 Charleston Servant in the round style, that was found by a friend while we searched together on a period site.
http://www.treasurenet.com/westeast/97-11/featurearticle1.html
Last, but certainly not least, we surely must note the exceedingly rare "FREE" Charleston slave tag, found a few years back by another legendary South Carolina digger, and featured in the following link. The "FREE" tags are the rarest of all, and the only ones known in the small oval shape.
http://forum.treasurenet.com/index.php/topic,367259.0.html
The sharing of factual knowledge by those experienced in the areas pertaining to historical items, is indeed crucial in educating the public, and hopefully avoiding a few more of the misconceptions so often found with the bogus "fakes", "frauds", & "fantasy" items flooding the collecting market through venues such as Ebay and the like.
Thankfully through the efforts of respected experts such as artillery historian P.C.G., and others, we can see light shed in many areas through the darkness of misunderstood history.
CC Hunter