Similar in size and weight to 1a, but not tinned. ?Fret? on reverse. Privy mark is now the central jewel on the obverse crown (quite difficult to make out) which can be unmodified, a trefoil, a crescent, or a mullet. All rotated die axis.
Illustrated?E.13/P.44. pm=crescent. 1613-14 (VS) unc.