Couldn't tell for sure as litterature sometimes say the opposite ... The typical example is WKC lionhead N°1016 ... It is listed as a regular Heer model but also as a Customs saber model. Some say Customs sabers had to be silvered and with green eyes ... some say it only depended on the model so in the end, a WKC 1016 with golden gilt & red eyes could be either heer or Customs ... Only the portepee made the difference .... So in the end of the day we can not be sure ... Still a green eyed lion is a good looking piece and when i see one, i guess it could be either SS or Customs ...