Afternoon all, could use some help from the collective wisdom of the sunnie community! Had these for over ten years, picked up in a rush through Heathrow but they've been brilliant. Served with me in the Royal Navy just about everywhere. After loaning to my wife (that is a loan I knew nothing about) I have skewed frames and shredded lenses. Can anyone identify the model and tell me if lenses can be had? I THINK they are Square Wires but can't be sure. Muchos gracias!