Cloth Seal, Charles II, Alnage, Crowned Thistle, 1676

Cloth Seal, Alnage, Crowned Thistle, 1676, Image & Found by Derfel.
Found on the Thames foreshore, 20 x 15mm.

Missing // thistle, crown above // (F?)W / 1676 // missing

The inner parts of a four part alnage seal from the reign of Charles II. FW may well be the alnager's initials.