I've been told they were Mechlick or Mehilic but can't find anything about them. They are knock offs with the back side drilled to pilot over special lug nuts and the knock off actually hold s the wheel on
Search for Mehelich wheels, there's a pretty detailed thread on the HAMB about them. EDIT : here ya go: http://www.jalopyjournal.com/forum/index.php?threads/Mehelich-Wheels????.809477/