Can you identify these two tartans?

[Barb T]

The one on the left _is_ symmetrical. The one on the right may be symmetrical - I can't see enough of it to tell. Remember that "symmetrical"simply means that there are pivots in the tartan across which the tartan repeats in mirror image. A fabric with warp and weft which are not identical, such as the fabric on the right, can still be symmetrical, but it isn't tartan (although some of the Welsh tartans don't have identical warp and weft and we still call them tartan, but virtually all tartans have identical warp and weft).

[Pleater]

If it is a lightweight material and does not have a good selvage then I would just select the right side (traditionally the weaving twill line should run from the right hip towards the left knee, but that is not always possible with some materials being woven or processed so only the other side is presentable) then fold the fabric double at about the length you need - pick a good line as the edge, and press it well, under a cloth, so you have a thicker fabric and a neat edge. You then cut off the nasty selvage and the spare cloth to use for the waistband, belt loops etc.

You do need to have enough of the cloth to do this, but it makes a light fabric do the duty of a heavy one, and those do look to have some nice colours - and the 'Grey Stuart' is rather distinguished looking.

I think thay would make good looking kilts, even though they might not be official tartans.