Michael, the Tom Greens I've been fortunate to dig up in central & north Louisiana all had the faint 1 ring on the bullet. All of my specimens are drops of the short/medium variety but two of my relic hunting buddies have found fired Tom Greens & the faint 1 ring is very visible on both. Since I don't recall seeing examples without the 1 ring, could you post a photo of one in your collection without the ring for me to view?
Mike, I think you're correct on the origin of the 1 ring on the Tom Green but if someone can confirm or has other info. on the origin or other reason for this 1 ring, please post.
Thanks.
R. J.