I'm deep into my latest project but stumped by the final touch-up paint!  I'm restoring a 1987 Logan Trojan, which was stored inside and in amazing condition.  It is a light gray color and I've tried six times to buy the correct touch-up paint.  Duplicolor "Light Slate M" comes very close but the M stands for metallic and it's too glittery.  It's a long-shot but I'm hoping someone here might have the answer.  I've made way too many trips and bought way too many types of paint.  Thanks in advance. 

Find an auto parts store that sells automotive paint supplies to the professional body shops. Most have a computer system that can colour match paints at the curb side. They can mix the paint and usually supply it in an aerosol can for touch up work.

You may be able to closely match the colour, but the finishes will vary due to weathering and the paint types. You may have to overcoat a whole panel for the best appearance.

Gard