Paint codes

I see on this site that the paints given for my Electra tank and oil tank and toolbox is "Ford Silver Fox" "GM25411".  I went to an automotive paint supplier, but he had no idea what these mean.  Can anybody give a car which uses these painta, or a more recognisable paint code?

Ford-"Silver Fox Met." paint code "063" In use from 1966 till 1972--probably only available in "solvent" and will require topcoat of 2pack laquer