Unfortunately the fade is severe, the colour and contrast have mostly gone, if we fed it through a scanner with an adjustable light source and better dynamic range, we could get a bit more out of it, but not really enough to warrant it. We would need a less faded print to start with.
However, the open matte lets us see a lot more, and there is just enough colour to know what colour things should have been, like this shot for instance…
Boosted a bit: