The controlling tablets are lifted from their place, passed over one or more tablets to the right or left and then re-inserted in the pack... the earliest example of the technique is a seal tag from Durham Cathedral, dated between 1189 and 1197 (Henshall, 1964)
Henshall, 1964 is 'Five Tablet Woven Seal Tags' in Archaeological Journal, Vol. CXXI. I finally got my hands on this article last week. It may blow nobody's mind to learn it details five different tablet woven bands. They are:
- Braid in double-faced plain weave with geometric pattern 1194-1215
Thora Sharptooth has written about this band.
- Braid in double-faced plain weave with chequer pattern 1165-1174
- Braid in double-faced diagonal weave with animal patterns 1189-1196
- Brocaded band in plain tablet weave 1371
- Multicoloured tablet-woven cord 1294
Teffania has written about this band.
Did Collingwood's imagination run away with him when he was reading this article? Did he have information beyond what is present in the article? Right now I don't see any evidence that warp transposition was in use in the medieval period. And I'm kinda sad about it!