The video done by House of Edgar spends a bit of time talking about the "herringbone selvedge" apparently typical of the times when these six tartans were being woven. Barb Tewksbury sent me a picture of a tartan with herringbone selvedge. One reason it was attractive was that the selvedge "stripe" border coincided EXACTLY with the transition from one stripe to another in the fabric. I know little enough about looms and weaving so as to have no clue whether that's always the way it would be.

Can anyone enlighten me on this?

Thanks so much!