Canada
Elizabeth II copper-nickel Specimen Uniface Trial Strike "World Map" 10 Dollars 1976-Dated SP63 PCGS, KM-Unl. 22.7gm. Trial issue struck for the 1976 Montréal Olympics featuring a world map. Similar to the adopted reverse for the 1973 $10, but less detailed and with XXIe above "Olympiade". A new discovery and the only known specimen.
https://coins.ha.com/itm/canada/canada-elizabeth-ii-copper-nickel-specimen-uniface-trial-strike-world-map-10-dollars-1976-dated-sp63-pcgs-/a/3088-34330.s?type=CoinArchives3088
HID02906262019
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Estimate: 2500-3500 USD