Guernsey - multiple duplicates to be merged [solved]

There is the full 2024 wildlife animals series added twice:

1. Please keep (better photos, I already requested for some corrections including title modification):   N#420384

Please delate: https://en.numista.com/catalogue/pieces419618.html

2. Keep: N#420386

remove: https://en.numista.com/catalogue/pieces419619.html

3. Keep: N#420387

Remove https://en.numista.com/catalogue/pieces419620.html

4. Keep: N#420350

Remove https://en.numista.com/catalogue/pieces419621.html

5. Keep: N#420385

Remove https://en.numista.com/catalogue/pieces419622.html

6. Keep: N#420383

Remove https://en.numista.com/catalogue/pieces419623.html

I hope all the keep pages have their material corrected too, because you obviously can't plate with an alloy [(nickel)-steel].

Good hint, didn't noticed this earlier. Just sent the modification for this too.

Idolenz

I hope all the keep pages have their material corrected too, because you obviously can't plate with an alloy [(nickel)-steel].

This sparked my interest. Why so? As non-technical type, I miss the obvious part. Are there other metals that cannot be used in plating?

Duplicates are gone.

You can plate with transitional metals according to their electrochemical properties (reduction potentials can't go near hydrogen for the most cases), for example gold, silver, nickel, copper, zinc etc..

With further treatment like heat you could make copper-zinc plating unit into brass. But steel is a mixture of iron and carbon, you can plate stuff containing carbon like some polymers and carbon fibre but not the other way around.

Thanks, this is certainly interesting. So if we take our list of metals, we can select those which can never exist as “plating” metal. Could you help with such a list? I would then convert that to improvement hint to catch instances of this in the catalogue.

Same goes for clad - if you or anyone else knows this, I would be glad to implement it. I guess it would also catch a few mistakes where people mixed core and plated material.

I could make a list but I don't know each and every possible (electro-)plating technique, I also think only very few are used for coin blanks.

A problem is that we seem to use plating in the broader meaning of any kind of metal deposition, from gilding (you can practically gilt any substrate that is solid) N#102596done since the invention of very thinly smashed gold over electro plating (certain chemical/physical rules apply) attributed to Brunatelli in 1805, to maybe even more exotic techniques for gimmick coins.

It does not have to be exhaustive to work really. I am fairly certain that fiber and cardboard cannot be plating anything really.🙃So any material that you are certain of, I will use to make catalogue more “guarded” against ilogical typos of users.

Like I said there are other plating techniques that could use a variety of other materials, so the following list is not exhaustive.

Maybe others more knowledgeable might chime in.

For electro plating
Substrate (core):

Anything conductive has the potential to be coated (out-come may vary depending on the material properties and the mix of materials)

Metals, Graphite, Carbon fibre

Polymers: ABS, phenolic plastics, urea-formaldehyde, nylon, polycarbonate

Non-conductive substrates have to coated in conductive spray or paint for metal to deposit on.

Potential plating material:

Pure metals (Example in catalog):

Aluminium N#305297 

Antimony

Bismuth

Cadmium

Chrome N#345516 

The only catalog entry but I could imagine quite a few chrome plated exonumia

Copper N#57475 

Gallium

Germanium

Gold N#174582 

Indium

Iridium N#350813 

Lead

Molybdenum

Nickel N#5200 

Osmium

Palladium N#49709 

Platinum N#350818 

Rhodium N#350820 

Ruthenium N#188050 

Silver N#24706  

Tin N#333570 

The only tin example, for the age no electro plating anyway maybe something else

Titanium

Tungsten

Vanadium

Zinc N#281347 

I think the American steel cent should fall under that, I don't believe that the zinc was cladded.

Alloys:

Aluminium-Bronze N#5718 

Brass N#93992 

Bronze N#2253 

Copper-Beryllium

Gold-Cobalt

Gold-Nickel

Iron-Cobalt

Nickel-Cobalt

Nickel-Iron

Nickel-Tungsten

Tin-Lead

Tin-Nickel

Zinc-Cobalt

Zinc-Nickel

Thank you! 

Hi All. Why don't some of these show when the search is filtered. I put in 2024 and 10 pence and some don't show? Thanks.

4 of the 12 coins from 2024 were with “unknown” denomination. I just sent the change requests to correct it.