This flask is made from blue hand blown glass, with a stopper covered in fabric and attached by a cord to the flask’s fabric case.
The flask’s fabric case is made from linen, embroidered with blue flax and done in pulled thread work.
As seen, the stitches also involve a stitch known as a dove’s eye. The bag was also stuffed with vegetable fibres, possibly for insulation. The size (including the bag) is 13.5cm height with 11 width and 1.5 cm depth.
The pilgrim’s flask in currently in the Ashmolean Museum and thought to have been made between 14th and 15th Century C.E.