D'Oh...
Shiny chrome, etc. - polaroid at least cuts off the glare from all but the filter's narrow angular range. How could we guess WHAT he was looking at?
But I know of no "two-piece" lens caps (kinda overkill?) - and that fuzzy pic is showing a different material (?) where a 'lens / filter' might be. ie.
Insufficient Data to chortle over - especially for the terminally eager.