1723 Wood's Hibernia Halfpenny. Martin 4.93-Gc.21, W-13120. Rarity-5. VF Details--Environmental Damage (PCGS).
114.7 grains. Dark olive and steel surfaces are not terribly rough, they just have some raised verdigris built in some of the obverse letters and at the date.
PCGS# 921300.
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From the Sydney F. Martin Collection. Earlier from eBay, April 2002.

Estimate: $55