The Paint Code reference is hidden in plain sight in the far left-hand column titled "Packard Paint X-Ref" or you can click here:
https://packardinfo.com/xoops/html/modules/PaintXRef/ Scrolling down someone has posted the Moonstone's modern paint is Standox 54623 and Ultramarine Poly is Standox 867456. But I don't know if that will be much help to you as I googled both terms and neither showed up. I also went to the Standox Paint website and the color numbers resulted in "No Match."
So unless whoever posted those paint codes steps up to explain what they used, then the numbers are of little use.
Good luck. IMHO, your best bet is to use modern paints - the problem is to get a good color reference to work from.
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