My SIL just dredged up a pile of old yarn, purchased in Spain and England more than 40 years ago. One of the yarns disintegrates on contact. The other is quite strong but very unusual. It has 4 strands running parallel but not twisted together and each of those strands is made up of 2 plies that are twisted fairly tightly together. Two of the strands are pale green and the other are off white. It produces a nice variegated effect when swatched ... but you have to watch like a hawk to catch all 4 strands with the needle. Its wool, with a good bit of halo. Pretty scratchy.
Can anybody shed any light on the story behind this unusual construction or any tips on how to use?