Bushwalk Australia

The question mark is because I''m assuming that my inability to focus through these glasses means they're a prescription job. Thickish glass lenses, pretty metal frames, good nick apart from a bit of dirt when found, which has washed off easily.
Sozzies please spread the word amongst walkers to see if we can find the owner. They were found 18th September and were probably on the ground for at least a couple of days, but it's hard to be sure.