Although the current Atholl Highlanders' kilts are modern most of their plaids are still Wilsons' cloth c1840. I went through their chests earlier this year and it's amazing how many variations on a theme there are. Almost all the same setting but is=n widely different shades depending on when they were purchased. There were two main buy, one in about 1832 and another in 1848 for the Eglinton Match. There are also a couple of plaid in Murray Mansfield tartan there too.