Well I've been a complete numpty and ordered two lots of the wrong touch paint So I now have a brand new Chipex touch up kit and a 100 ml pot of TITANIUM silver (rather than Tungsten ) If you are interested in it let me know
I know where it is and have checked it - then forget the number. I recalled it began with a T and went for Titanium. Got them out to touch up a few chips at the weekend then realised my muppetry That'll teach me to check in future!