From here we went to a large 2nd hand shop where Rob had spied on a previous trip, a stack of nice green coloured strings of discs. As soon as I saw them I recognised them as like my 'Isorex' disc I had at home. Needless to say, we got a string of these each plus a couple of single discs. The crate with the multis in it was strong enough for us to strap the boxed strings on the top as you can see in this pic.