Silver hammered coin - electrolysis before and after

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Oxgirl36
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Silver hammered coin - electrolysis before and after

Post by Oxgirl36 » Sun May 19, 2019 7:17 pm

Ok found these two on a new field today. Ones a silver half groat the other is a pierced copper coin, probably a jetton. I’ve tried the spit and foil on the hammie but it’s not doing much and I’m scared of damaging it further (it’s pretty poor condition). So do I soak it in lemon juice or electrolysis? The copper I’m stumped with what to do.

I just want to get them good enough to ID really. Any advice you could give I would be very grateful.
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XP Deus !!£$ I use the HOT programme on 17khz, reactivity at 2.5 on v5.21 with the X35 11” coil

Hammered silver 2019 - 11 :D

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Re: Cleaning help please

Post by Me and my boy » Sun May 19, 2019 7:26 pm

Hi Oxgirl,

I would zap the silver one, Defiantly.

Ps well done.
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Re: Cleaning help please

Post by Blackadder43 » Sun May 19, 2019 7:33 pm

Many moons ago when i detected like a demon i had a similar condition hammy
Over the course of a couple of nights i zapped it, took it out, zapped it, took it out
Finally a lot of the crud fell away and allowed the tin foil trick to do its work
Percy verance (spelling) is needed here
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Re: Cleaning help please

Post by SuperRed » Sun May 19, 2019 8:33 pm

Looks a bit flaky that one OG... I'd be tempted to try a soak first.
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Re: Cleaning help please

Post by Fusion » Sun May 19, 2019 9:28 pm

An acid soak won't harm the high silver content hammered, and it may remove a bit of the corrosion, if there's any copper salts, for example. But it's going to need something more effective, like electrolysis to really shift the 'patina'
:(

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Re: Cleaning help please

Post by garrettoldboy » Sun May 19, 2019 10:30 pm

hello, what cleaners do you have ??

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Re: Cleaning help please

Post by Oxgirl36 » Sun May 19, 2019 10:39 pm

I have electrolysis and a good ultrasonic.

I’m thinking I’ll go electrolysis- that is if I can find the darn thing!
XP Deus !!£$ I use the HOT programme on 17khz, reactivity at 2.5 on v5.21 with the X35 11” coil

Hammered silver 2019 - 11 :D

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Re: Cleaning help please

Post by littleboot » Sun May 19, 2019 10:49 pm

Deffo zap the silver as it will be good enough silver to take it, The jeton/copper leave. Just a touch of wax maybe.
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Re: Cleaning help please

Post by Allectus » Sun May 19, 2019 11:32 pm

A York groat/halfgroat. Definitely in need of a few zaps! ::g

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Re: Cleaning help please

Post by garrettoldboy » Mon May 20, 2019 9:50 pm

Oxgirl36 wrote:
Sun May 19, 2019 10:39 pm
I have electrolysis and a good ultrasonic.

I’m thinking I’ll go electrolysis- that is if I can find the darn thing!
hello, i would do top coin first in the ultrasonic in warm water with a bit of washing up liquid, and bottom one in the electro.

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Re: Cleaning help please

Post by Koala » Mon May 20, 2019 10:10 pm

coppers like that I soak in caustic soda

it will not harm the copper but will ruin any patina by turning it black.

then scrape the black off with a fiberglass pen. Unfortunately its going to fairly blank whatever you do

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Re: Cleaning help please

Post by vladorado » Mon May 20, 2019 10:22 pm

Just rub it with wet baking soda with you fingers.
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Re: Cleaning help please

Post by Oxgirl36 » Mon May 20, 2019 10:25 pm

Electrolysis was used. I like electrolysis now, it’s very satisfying watching it bubble away and the crud literally bubbling off it :D
7D3C3DDA-5DF1-4C2E-8617-32F86416B9C8.jpeg
7260D0F3-8CAB-4385-9024-CA10E935862C.jpeg
For the ID thread go here viewtopic.php?f=120&t=111747

Method


I first soaked it in an olive oil and lemon mix warmed by putting a smaller dish (with the coin and the mix) inside a bigger bowl with boiling water. Left for an hour or two. Washed with soap and gave it a little brush. Then used an old phone charger with warm water and loads of salt. Got it out and used toothbrush after about 2 minutes. The water was filthy so changed it for fresh with more salt. Repeated. Washed it. Then a gentle rub over with tin foil. I wanted to keep some patina.

Last time i tried this I put the clips on according to the instructions supplied but it looks like the supplier has done them the wrong way round =))

Thank you all very much for all your advice and help. It was really appreciated. For now I’ll leave the copper one. I suspect it’s beyond redemption ;))
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XP Deus !!£$ I use the HOT programme on 17khz, reactivity at 2.5 on v5.21 with the X35 11” coil

Hammered silver 2019 - 11 :D

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Re: Silver hammered coin - electrolysis before and after

Post by Lowland » Mon May 20, 2019 10:55 pm

Just need to find some More big’uns to practice on now ::g
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