German States
Oldenburg. Nicolaus Friedrich Peter Proof 2 Mark 1891-A PR66 PCGS, Berlin mint, KM201. Muted argent gray surfaces with luminescent turquoise and reds miraculously appearing when tilted in the light just right.
https://coins.ha.com/itm/german-states/oldenburg/german-states-oldenburg-nicolaus-friedrich-peter-proof-2-mark-1891-a-pr66-pcgs-/a/3082-33884.s?type=CoinArchives3082
HID02906262019
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Estimate: 1000-1200 USD