Watch List notes:

William and Mary (1688-94), Tin Halfpenny (with copper plug), 1689, type 1, conjoined laureate and draped busts right, star stops in legend, rev. Britannia seated left, [n]vmmo[rvm * f]amvlvs * 1689, on edge, 10.98g (BMC [Peck] 565, pl. IX, {this coin}; S.3447), spots of corrosion prompting edge loss and partial surface blistering, the struck detail otherwise better than very fine for issue, with a further trace of mint lustre in recesses, very rare.
provenance
C W Peck collection
Estimate: £1500 - £2000