This ancient red scarf, made by Lochcarron, is 100% wool.
The scarf was seen on Vinted: https://www.vinted.co.uk/items/7013575003-lochcarron-wool-scarf-macpherson. Photo credit jupitergunner12. Seller’s description: ‘Lochcarron of Scotland Lambs Wool Scarf Macpherson clan tartan’.

