Cloth Seal, Alnage, RWR Ligature, Image by StuE, Found by Nasher.
Found near Baldock, Hertfordshire, 11 x 20mm, 2.3g.
Cloth seal rivet showing excellent example of William III crowned ligature RWR with retrograde first R. These can be found still being used by alnager on the seals of several following monarchs.