Cloth Seal, Cloth Worker's Personal Seal, Pictorial Device, Undeciphered, CI

Cloth Seal, Cloth Worker's Personal Seal, Pictorial Device, Undeciphered, CI, Image by StuE, Found by Nasher.
Found near Baldock, Hertfordshire, 24mm, 9.8g.

C I heavily stamped (secondary) // undeciphered design

Probably a cloth worker's personal seal of the pictorial variety. Coat of arms?