I'm afraid I am not seeing what you are seeing in your scan. Here it is:


I distinctly see a navy blue and a green in this image. In your color sequence, you label both of these colors as green. Even if the colors in the scan are not perfect, as you say, they are at least two different colors.

I've given it a second, and a third look, and to my eye this is none other than Drummond of Perth, aka Perthshire.

R72 W2 B6 Y2 G32 R16 B6 A4 W2

This sample seems to match the thread count given by the STA pretty much exactly (as close as I can tell from the picture, that is).