Nanook,
No offense intended, but I can't follow your line of argument-- for example you quote "equestrian fashion" as though it is somehow different than "civilian fashion"... huh? Anyhow this is getting too far off topic (Prince Charlie Coatees) to spend anymore time discussing things like the time line of the social acceptability of Levis (which I'd though made the big break though when Gene Autry had a tuxedo made from Levi denim before the second world war). Anyhow, I think we're going to have to amicably disagree on the military/civilian origins of the Prince Charlie coatee as we seem to be the only guys interested in it.