Great Britain
Elizabeth II gold Proof "Britannia" 100 Pounds 2010 PR69 Ultra Cameo NGC, KM1138. AGW 1.0027 oz.
https://coins.ha.com/itm/great-britain/great-britain-elizabeth-ii-gold-proof-britannia-100-pounds-2010-pr69-ultra-cameo-ngc-/a/3083-32535.s?type=CoinArchives3083
HID02906262019
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Estimate: 1600-1700 USD