IRELAND. Penny, 1823. London Mint. George IV. PCGS PROOF-64 Brown.
S-6623; KM-151. Tied with just one other specimen as the sole representatives in proof seen by PCGS, this near-Gem stunner offers alluring brown surfaces, a razor sharp strike, and some muted brilliance that also yields hues of elegant red.
Estimate: $700 - $1000