Purple star back stamps
 

I've seen a few of these over the years and currently own Flick, WaJo and Lajoie. I think they are pretty cool and am happy to have a few. I am wondering if any others are out there in net54 member collections. Also wondering if the stamp appears on any cards other than t206s. If you have any, have seen some, or know anything about the stamp please post.

I've seen a purple star stamp on a T205 as well - the Phelps Broadleaf that was auctioned at:
http://loveofthegameauctions.com/lot-4869.aspx

A board member has created a great site that tracks stamped T206. He has a page for stars, though not all of them match yours, Luke:

http://thegreatt206backstampproject.....com/stars.php

Thanks guys. Interesting. That looks like multiple people may have used a stamp like that. The 4 that I posted all seem to be stamped very deliberately in the same exact spot on the back of each card. The stamp isn't real unique so it makes sense that it may have used by multiple people. If that is the case, it's odd that every stamp used purple ink.