Help ID Scottish tartan flash on Pith helmet

[Westernhighlander]

Can anyone help ID this tartan flash...

[Alex Rice]

That looks like Gunn tartan to me but I'm not aware of any Scottish units that use it. Maybe colonial or made up?
Cheers,
Alex

[Westernhighlander]

I think I've found it;

Atholl or Murray of Atholl - worn by the Atholl Highlanders, the private army of the Duke of Atholl.
Also worn by:
The Transvaal Scottish Regiment in South Africa.(Pipers wear Murray of Tullibardine - the Marquis of Tullibardine is the son of the Duke of Atholl).
The Pipe Bands of Trinity College, Glenalmond, Scotland.
4th S.A. Infantry (South African Scottish)
Scottish Horse, Pipers

As this is a foreign service helmet/pith helmet, I am inclined to believe it's from either the Transvaal Scottish or the 4th S.A Infantry.

[Alex Rice]

The tartan you've shown there is different to the tartan on the helmet flash. The one on the helmet doesn't have the 2 narrow black stripes running next to the broad black stripe.
Still say it's more like Gunn though Gunn doesn't have the black outlining on the red stripe. Might just be a variation???

[Westernhighlander]

I see what you mean,
But if you look carefully you can see that the flash on the helmet shows three vertical red stripes and three horizontal red stripes. Consequently the lines intersect 9 times. Furthermore the middle horizontal and vertical red stripes are outlined in black. This is identical to the Atholl tartan (see attached illustration).

The Gunn tartan, on the other hand, only has two horizontal and two vertical red stripes which intersect 4 (vs 9) times. Additionally instead of a third red stripe outlined in black running in-between the two vertical and horizontal red stripes (as is the case with the Atholl tartan) the Gunn tartan has a green stripe running between the two horizontal and vertical red stripes.

The reason the one on the helmet doesn't have the 2 narrow black stripes running next to the broad black stripe is because the section of fabric appears to have been cut along those lines.

[dragon166]

I have put the two tartans together and added the sample from the Tartan Registry, I agree that they appear to be the Atholl tartan.

[figheadair]

It is definitely Murray of Atholl.