I purchased these Oakleys some time during the 90s.. maybe early 90's. amazingly they are in great shape still.. Have no idea why.. I am wondering what kind of oakleys these are or what model.. I would imagine they are considered vintage.. The only marking i notice is something that looks like a C E on the inner part of the .. what do you call it.. stem? The part that goes on your ears. I sound foolish haha. Any help would be appreciated.. here is a pic.