*William and Mary, tin farthing, 1690, conjoined busts right, rev., Britannia, date in exergue, lettered edge reads nvmmorvm famvlvs 1690, stops are single six-pointed stars before and after nvmmorvm with five-pointed star after famvlvs, 6.04g (variety not listed by B.M.C. but cf. 577-579; S. 3451), with very little wear but showing corrosion which has apparently been stabilised by chemical treatment leaving the coin's surface blackened and discoloured (50 - 100)