There is a great postcard of the advertisment for the reunion on page 102 in my book, Remembering Georgia's Confederates.
I have found that the Atlanta History Center probably has the best images for this reunion. If not mistaken, there are also a few images associated with this particular reunion in Confederate Veteran magazine.
I have a watch fob from the reunion but it is marked SCV as the Sons established in Macon 1912 and would attend the same reunions. remgaconfed@aol.com