Sorry to do one of these lame ID threads, but I can't find the answer in other forum discussions. I like these square shape of these glasses. They look almost like thick brown framed aviators. Some speculate that it's vintage Persol. If these aren't available anymore, can someone suggest a similar shaped pair? http://www.askandyaboutclothes.com/forum/showthread.php?105746-What-sunglasses-are-these http://sunglassforums.com/Celebrity-Sunglasses-f6/id-prince-charles-sunglasses-t646/ They certainly aren't these Persols ("PO3026S"). Charles' have larger and squarer lenses. The PO302's look too much like optical glasses to me with the rectangular lenses.