Germany
Democratic Republic "Engels" 20 Mark 1970 MS67 NGC, Berlin mint, KM28. A low-mintage commemorative for 150th anniversary of Friedrich Engels' birth, struck to a mintage of only 100,000 pieces.
https://coins.ha.com/itm/germany/germany-democratic-republic-engels-20-mark-1970-ms67-ngc-/a/61272-97447.s?type=DA-DMC-CoinArchives-WorldCoins-61272-05292022
HID02906262019
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