Argus Autronic 35 Front Lens Element

This front lens element and the case is all I have left of an Argus Autronic 35 camera I had back in the late-1970's. I purchased it at a yard sale and it wasn't in working condition. After trying to take it apart and fix it, (unsuccessfully, I might add), the pieces disappeared over the years until this is all I have left of it.