LOL. I've been know to 'slum' around in the AD's from time to time.
"the paucity of surviving material from anywhere except Central Asia, ancient Egypt and the Austrian salt mines of (Celtic) Hallstadt. A demonstrable similarity between the twill fragments found in Austria and those of Central Asia, however, was the presence of lice."
I spent time at Hallstadt, one of the most "holy sites" of Celtic studies. Hope to go back sometime.