We can mix 10-15,000 colours. the problem is that the paint systems that were used in the 70's, 80's and 90's have all been discontinued. The paint manafacturers only match up the new colours when they bring out their new systems and then go back just a few years. the only thing we can do is to either take a colout shot of a paint sample with a colour camera or if the original code has a sikkens colourmap position we might be able to match it up from there. So save any colour documentation that you have, cross references to other colours etc. to make our job easier.