Bryan’s Mystery Mercedes Putter

Anyone help Bryan out with the maker of this one?

Do not confuse this putter with the Bettinardi BBX-80 Mercedes Benz putter. My question is who made this little beauty? It is CNC milled, has a copper insert, an Apollo seamless steel rifle shaft made in England and a black leather, stitched back putter grip. I’m assuming the S on the sole stands for S-class? The Mercedes Benz putter has good handling and rolls smoothly. Another putter pulled from the depths of my collection, that I thought may be of interest to…  putter people. Any information on this putter would be appreciated. Thanks.