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 Replies: 18 / Views: 2,876 |
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Pillar of the Community
United States
1045 Posts |
The mark on the reverse isn't part of the original design. It is either a post burial encrustation or possibly a piece of stray metal that was inadvertently struck into the coin.
It is the 4th officina as denoted by the "delta" in the mint mark
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Pillar of the Community
Belgium
1194 Posts |
Here it is the fourth officina (delta) ; The gamma is a control mark , you can find more explanation in the history of the mint of Heraclea just before the catalogue , especially p 524 : Group IV.albert
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Pillar of the Community
  Spain
2752 Posts |
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Pillar of the Community
Belgium
1194 Posts |
Ric , VI , Heraclea mint p 524 for your coin of group IV , 308-309.albert
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Moderator
 United States
23731 Posts |
I agree with Biancasdad. Most likely some type of deposit on the coin.
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Pillar of the Community
United States
3446 Posts |
Not my area of expertise ......yet !
I have been buying heavily into tetrarchy folles lately but they are all western mints.
Acetone will not harm a coin at all. Similar to alcohol but more volatile.
Excellent for removing any oils or moisture. It will leave the surface dry as bone.
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Pillar of the Community
Spain
2752 Posts |
Thanks all . Nice one Albert really informative and interesting read and has cleared up a few questions I had.I still can't find info on control markings but I've seen them somewhere and can't remember where  .Maybe it is just a deposit but up close it really looks formed if you know what I mean. How long to soak the coin in acetone ? I also thought about soaking it in olive oil any thoughts? Paul |
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Pillar of the Community
Belgium
1194 Posts |
RIC does not mention any mark in the fields , so Biancasdad and Echizento are right,I think .You will not find many information on control marks , because it it very difficult or impossible to explain them;albert
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Pillar of the Community
Spain
2752 Posts |
Ok thanks Albert at least I know know my attribution of the coin was correct a nice feel good.I feel much more confident now thanks to the help received on this forum.
Gracias saludos Paul
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Pillar of the Community
United States
3098 Posts |
I agree with the other comments that it's either a mark on an encrustation.
Any letters in the reverse field would be higher up on the coin.
Paul Bulgerin
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Pillar of the Community
United States
3446 Posts |
I only recommended the acetone as a remedy if you applied a dab of oil and did not like the darkened look. A quick ten minute bath in acetone will cleanse the surface and restore the original appearance. A prolonged bath in olive oil might permanently darken the coin. As the patination is already 'black' any darkening will be relatively minor.
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Pillar of the Community
Spain
2752 Posts |
Well here it is after 2 weeks in olive oil nice dark uniform black green patina.Really pleased with this..my first coin I've cleaned.Any thoughts appreciated?   Bought it like this...  Thanks for everyones help. Saludos Paul |
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Pillar of the Community
United States
949 Posts |
Considering what you had to start with you did a super job cleaning up that coin!
If you have access to a microscope that will let you work on the coin while in its field of view, then you might be able to clean up some of the lettering on the reverse using a needle or dental pick, but that would be frosting on the cake. If you do that, be sure to hold the instrument close to its tip to avoid uncontrolled springing.
I would remove that occlusion you were asking about, since it is not a letter gamma as someone suggested. Wrong shape for that and entirely inappropriate for the issue as designed. See Sutherland in RIC VI (as mentioned by Albert) for details on how the series had developed at Heraclea up to this point. It will tell you what should be there, and what should not.
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Pillar of the Community
Spain
2752 Posts |
Great read on the Heraclea mint.I've tried to remove the occlusion but it doesn't want to leave!!So I'll leave as is and bag it.I'm in the process of cleaning a couple of other coins ...as I'm now addicted!!Will post them when finished.
Thanks for everyones help saludos Paul
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Pillar of the Community
Belgium
1194 Posts |
very nice,good work.albert
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Replies: 18 / Views: 2,876 |
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Posted 12/23/2015 09:22 am
