Cloth Seal, Alnage, Crowned Harp

Cloth Seal, Alnage, Crowned Harp, Image by StuE, Found by Nasher.
Found near Baldock, Hertfordshire, 15mm, 1.3g.

Missing // crowned harp, 4 to left // missing // missing

One disc from a four part alnage seal bearing a crowned harp with the figure 4 to the left representing the four pennies alnage subsidy charge.