Cloth Seal, Cloth Worker's Personal Seal, Privy Mark, MI, 1500~1800

Cloth Seal, Cloth Worker's Personal Seal, Privy Mark MI Seal, Image by StuE, Found by Goretex.
Found in Yorkshire, 22mm, 6.2g.

Typical privy mark on one side incorporating an S and M with a triple crossed I (17th century J) either side all in a circular beaded border. The other side has MI or IW stamped into it.