Cardinal123
Joined: 9-Feb-2019
Posts: 10
Posted: 12-Feb-2019, 20:23
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Posted: 12-Feb-2019, 20:23
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This is 1907 5 mark
i found it in catalogue but can silver be this corroded and if its silver can i clean it and how ?
Bartweegie
Joined: 6-Apr-2012
Posts: 131
Posted: 12-Feb-2019, 20:44
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Posted: 12-Feb-2019, 20:44
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Looks dodgy. What's on the rim? The real McCoys had a motto "GOTT MIT UNS" there.
Napoleon1
Joined: 18-Jul-2018
Posts: 130
Posted: 12-Feb-2019, 20:55
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Posted: 12-Feb-2019, 20:55
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From what I can see, it appears to have some rust, which if correct, would mean the coin is not real. (Unless the rust came from being against a ferrous object, and a small layer bonded to the coin at contact point- this is often seen with metal detecting finds). Have you checked it with a magnet? Also, as posted by bartweegie, if there is no edge lettering that would mean it is not real.
Bartweegie
Joined: 6-Apr-2012
Posts: 131
Posted: 12-Feb-2019, 21:01
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Posted: 12-Feb-2019, 21:01
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Quote: "Napoleon1"From what I can see, it appears to have some rust, which if correct, would mean the coin is not real. (Unless the rust came from being against a ferrous object, and a small layer bonded to the coin at contact point- this is often seen with metal detecting finds). Have you checked it with a magnet? Also, as posted by bartweegie, if there is no edge lettering that would mean it is not real.
Some coins found during metal detecting can have some deposits on them (it does not necessarily have to be a corrosion), depending on the soils they were deposited in. I actually found some roman denarii with ferrous oxide layers on them, which gave them similar look (although not on the whole surface, but in lumps) also a Victorian shilling with one side brown. Just a wee bit of smart4r5ing from me :)
Napoleon1
Joined: 18-Jul-2018
Posts: 130
Posted: 12-Feb-2019, 21:22
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Posted: 12-Feb-2019, 21:22
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Quote: "Bartweegie"
Quote: "Napoleon1"From what I can see, it appears to have some rust, which if correct, would mean the coin is not real. (Unless the rust came from being against a ferrous object, and a small layer bonded to the coin at contact point- this is often seen with metal detecting finds). Have you checked it with a magnet? Also, as posted by bartweegie, if there is no edge lettering that would mean it is not real.
Some coins found during metal detecting can have some deposits on them (it does not necessarily have to be a corrosion), depending on the soils they were deposited in. I actually found some roman denarii with ferrous oxide layers on them, which gave them similar look (although not on the whole surface, but in lumps) also a Victorian shilling with one side brown. Just a wee bit of smart4r5ing from me :)
Yes, I’ve had several similar experiences- the one I clearly recall was a brass watch fob that was buried next to some sort of small iron item. A chunk of iron had bonded to one side of the fob, and the only way to remove it was by a quick bath in a solution of muriatic (hydrochloric ) acid and water. It came out looking excellent
(This method of cleaning does not work on all metals, so make sure is compatible first, do not leave in the diluted solution but for a moment, otherwise item could be ruined. Also, DO NOT DO THIS without proper ventilation and knowing EXACTLY what you are doing).
KLiao
Joined: 6-Jan-2019
Posts: 656
Posted: 12-Feb-2019, 21:24
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Posted: 12-Feb-2019, 21:24
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If I just took a glance i would think is it was a copper or rusted steel coin.
Cardinal123
Joined: 9-Feb-2019
Posts: 10
Posted: 12-Feb-2019, 21:53
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Posted: 12-Feb-2019, 21:53
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it doesnt say anything on the rim,it is reeded
PetrusAscanus
Joined: 22-Nov-2014
Posts: 6304
Posted: 12-Feb-2019, 23:28
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Posted: 12-Feb-2019, 23:28
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Non est totum quod splendet ut aurum
Rijkdom bestaat niet uit het hebben van veel bezittingen, maar in het hebben van weinig behoeften
Status changed to Solved
(Cardinal123, 12-Feb-2019, 23:43)
Status changed to Opened
(Cardinal123, 12-Feb-2019, 23:44)
Cardinal123
Joined: 9-Feb-2019
Posts: 10
Posted: 12-Feb-2019, 23:44
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Posted: 12-Feb-2019, 23:44
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Status changed to Solved
(Cardinal123, 12-Feb-2019, 23:44)
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