Military hair sporran strap colour?

[OC Richard]

Here are some photographic examples.

Black Watch:



Here the Pipe Major of the Gordon Highlanders is wearing black, the Drum Major of the Gordon Highlanders wearing white



Non-piper Other Ranks of the Argylls wearing white, piper of the Argylls wearing black




Black Watch wearing white



And here, apparently, black! Very strange, and goes to show how photographic postcards can be misleading, because sometimes they have been hand-coloured (painted over).

This two photos were obviously taken moments apart. Did the Pipe Major of the Black Watch suddenly change his sporran strap in between photos? As I said, strange.