Soo...bit late in the day but didnt know this forum existed. A few months back i left my prescription sunglasses on a bus (poss 343)on the top deck , left side near front.I left the bus at peckham. They were in a hard black case (labelled either osiris or specsavers) and are grey and v strong prescription in one eye and weak in the other. Not designer so not much use to anyone but me. I loved them. Im leaving the are so this is my last ditch attempt to be reunited with them. Other wise im squinting all summer.