||William IV Proof Halfcrown 1831, S-3834A, KM714.1, PR65 NGC. Incuse "WW" in block form on truncation, plain edge. A rarity in proof state, this is probably from one of the very scarce 1831 Coronation proof sets. However, single pieces were also minted upon application by collectors of the day. This example, with vivid silvery gray and tawny gold toning, is unusually well preserved. A few small imperfections are seen on the raised obverse wire rim. The reverse, showing lovely shades of greenish blue iridescence, appears to be superb, with a perfect wire rim outside of the boldly beaded circle. When seen at all, this proof issue is normally found impaired -- not in the exceptional condition seen here.
Realized $5,581.25. Description courtesy of Heritage Auctions.