Restoring a flimsy medieval silver coin

Discussion in 'Ancient Coins' started by Roerbakmix, Apr 8, 2021.

  1. Roerbakmix

    Roerbakmix Well-Known Member

    This rare medieval coin of Gottfried II von Heinsberg was in rather poor condition, with a thick find patina (probably mostly AgSO4 and AgCl) and a large albeit superficial iron oxide deposit on the reverse.
    WhatsApp Image 2021-04-07 at 22.15.05.jpeg
    Using a brief immersion in sodium thiosulphate, followed by aprox. 15 minutes of local application of (very concentrated) synthetic citric acid, followed gentle rubbing of a cotton swab and bamboo tooth stick on the iron oxides (reverse), I ended up with this:
    WhatsApp Image 2021-04-07 at 22.39.03.jpeg
    Gottfried II von Heinsberg, 1303-1331. Denar (Köpfchen), Blankenburg or Heinsberg mint. A local imitation of the contemporary coinage of the Dutch counts Floris V and Willem III. Rare - but this variant is even scarcer as the typical four flowers in the reverse fields are omitted.

    I restored this coin after a very busy ER shift of 12+ hours ... this gave me an immense satisfaction following the chaotic shift.
     
    Shea19, cmezner, Curtisimo and 29 others like this.
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  3. Roman Collector

    Roman Collector Supporter! Supporter

  4. Theodosius

    Theodosius Fine Style Seeker Supporter

    Great work!

    That is an interesting coin.

    John
     
    spirityoda likes this.
  5. AussieCollector

    AussieCollector Moderator Moderator

    Looks great, well done
     
  6. Marsyas Mike

    Marsyas Mike Well-Known Member

    A very nice job on an interesting coin. Köpfchen! I learn a word every day.
     
  7. seth77

    seth77 Well-Known Member

    Nice work and very nice coin, even the before pic looks good and fully identifiable.
     
  8. +VGO.DVCKS

    +VGO.DVCKS Well-Known Member

    Superb job, @Roerbakmix. Congratulations on that, and a magnificent coin!
    I'm completely unacquainted with the type, along with the prototypes. Were the counts of Holland already issuing esterlins, replete with the English long cross? Looks like a hybrid imitation. ...Very, Very cool.
     
  9. Roerbakmix

    Roerbakmix Well-Known Member

    Thanks.
    Indeed, I recognized it as different than the normal pennies from the Dutch counts, with the different legend starting with GOD ... The contemporary Dutch pennies usually start with FCOM ... or WCOM. But, @AnYangMan knows way more about that than I do.
     
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