1912
Many of the numbers are in sequence: 6 12 then 12 36 48 60 72 (the last number plus 12). It has been fastened onto a piece of blue paper.
TRC 2018.0473
Marking sample
Textile Research Centre
Flax dye
Factory woven cloth (plain weave) hand embroidery (buttonhole stitch cross stitch holbein stitch square eyelets)