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 Replies: 12 / Views: 2,039 |
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New Member
United States
2 Posts |
In a German-language book on ancient Greek coins the author refers to the classic tools used by ancient stone cutters and stamp cutters (for coin dies). He lists the burin (Stichel), drill (Bohrer), and the Rundperl. I can find nothing about the Rundperl. Can anyone tell me what this tool is in English?
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Pillar of the Community
United Kingdom
1569 Posts |
Not 100 percent on this but Rundperlen means round pearl, if that helps at all.
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Pillar of the Community
United States
3473 Posts |
Internet German translator returned "Circular Perch"
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Pillar of the Community
United States
587 Posts |
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Moderator
 United States
23731 Posts |
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Pillar of the Community
 United States
7955 Posts |
Quote:
Likely "round bead." I think since many ancient and medieval coins have a beaded circle or other similar device, I think this makes a lot a sense, i.e. it is a punch that makes a hemispherical impression. |
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Pillar of the Community
United Kingdom
1168 Posts |
I think it refers to a small drilling/milling ball head bit, similar to this modern one.  |
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Moderator
United States
189125 Posts |
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Bedrock of the Community
Australia
21788 Posts |
My first love is ancient coins.
I assume that the writer is referring to the cutting of dies for ancient coins.
Such a tool would NOT be made out of a modern hardened high speed tool steel ferro alloy.
Nevertheless, the picture has given me a clue.
I am thinking that
a 'rundperl' could be a ball headed punch
to help with the intaglio die cutting. The result would be a dot or a small dome on the coin.
The direct translation for 'rundperl' is roundperl
Edited by sel_69l
01/18/2020 02:29 am
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Pillar of the Community
United Kingdom
1168 Posts |
As the OP mentioned the burin or Stichel (hand cutting tool) and the drill or Bohrer, with the Rundperl (drilling tools), the attached image was solely to show what a round ended drill bit, or burr may have looked like. It is actually a modern carbide ball nosed burr. A punch on the other hand is usually associated with a hammer.
If anyone else thinks I was inferring that Romans had such sophisticated drill bits, or burrs, then I apologise unreservedly.
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Pillar of the Community
United States
7066 Posts |
Don't know if these guys, from among my tools for working on metal etching and drypoint plates, would qualify as "rundperls" - but they do have spherical heads. I don't use them as punches, however. I've mostly used them for burnishing in tight areas.  Edited by Kamnaskires
01/18/2020 10:10 am
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Pillar of the Community
United Kingdom
1168 Posts |
They could well be, Bob. Hand tools have not changed much over the centuries. Ones with serrated edges would be cutting or shaping tools, and the smooth ones would indeed be polishing or finishing tools.
I see that you look after your tools, and they will give you good service for many years. Wooden handled tools should never be hit with a hammer.
Jim
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New Member
 United States
2 Posts |
Thanks to all who weighed in on my question. I have a better idea now of what the author was likely referring to.
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Replies: 12 / Views: 2,039 |
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Posted 01/17/2020 09:18 am
