I just found this post. Check it out, I'm not the only one with these. I have ask him if he knows what symbol the unknown is.
Dear friends,
I am trying to identify maker,distributor or retailer of what appear to be Gongi game pieces found buried in the ground on a football field in Waco,Texas,USA, using a hobby metal detector. These pieces have the following features:
-Comparable in diameter to our US Lincoln Memorial penny.
-Octagonal shaped perimeter (8 flats).
-All pieces found to date have image of basketball player
making a "slam-dunk" shot over the net rim on one side and
a different image on the reverse side.
-Reverse sides have one of the following engravings or
images: World Cup, 2002, Race Car, Five Olympic Circles,
Basketball, Netball.
-All pieces appear to be cast of pewter and copper plated
I'm guessing that these items were produced to commemorate the 2002 Olympic games, jointly hosted by Korea and Japan.
Ideally,I am looking for proof-positive identification, such as an advertisement showing a picture of the game pieces, with the name and address of the seller. However,any information that you can provide that might lead to a positive identification will be appreciated.
If you have any questions, feel free to contact me at my Email address below.
Thanks very much!
Todd Brock