silvestervermolen
Ingressou: 28 Nov 2024
Publicações: 20
Publicado: 31 Out 2025, 22:37
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Publicado: 31 Out 2025, 22:37
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Could anyone pls tell me what this is, what it's made of and maybe even what it's worth. Thank you.
Frenchlover
Árbitro de catálogo
Ingressou: 16 Jul 2013
Publicações: 13619
Publicado: 1 Nov 2025, 23:48
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Publicado: 1 Nov 2025, 23:48
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Referee of south atlantic islands
silvestervermolen
Ingressou: 28 Nov 2024
Publicações: 20
Publicado: 3 Nov 2025, 00:18
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Publicado: 3 Nov 2025, 00:18
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No one is starting what material it is. What is the best way for me to find out?
Frenchlover
Árbitro de catálogo
Ingressou: 16 Jul 2013
Publicações: 13619
Publicado: 3 Nov 2025, 07:46
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Publicado: 3 Nov 2025, 07:46
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Precise measure of width, diameter and weight. Magnetic or not might be sufficient to roughtly determine the alloy.
Referee of south atlantic islands
silvestervermolen
Ingressou: 28 Nov 2024
Publicações: 20
Publicado: 3 Nov 2025, 20:07
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Publicado: 3 Nov 2025, 20:07
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I have no good way to measure the weight but it looks so impressive that it would be sad to make this out of anything else then silver. It is also non-magnetic and is colored a bit like something silver would I think.
Frenchlover
Árbitro de catálogo
Ingressou: 16 Jul 2013
Publicações: 13619
Publicado: 3 Nov 2025, 20:37
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Publicado: 3 Nov 2025, 20:37
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"ping tes t" and “ice cube test ” may confirm silver.
Referee of south atlantic islands
silvestervermolen
Ingressou: 28 Nov 2024
Publicações: 20
Publicado: 3 Nov 2025, 22:18
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Publicado: 3 Nov 2025, 22:18
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It weights 6.76gram according to my scale and is 2.5cm long excluding the top hanger. The surface area for a circle 2.5cm would be 4.1cm². maybe someone could tell me something with that info
Frenchlover
Árbitro de catálogo
Ingressou: 16 Jul 2013
Publicações: 13619
Publicado: 3 Nov 2025, 22:20
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Publicado: 3 Nov 2025, 22:20
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silvestervermolen
It weights 6.76gram according to my scale and is 2.5cm long excluding the top hanger. The surface area for a circle 2.5cm would be 4.1cm². maybe someone could tell me something with that info
The width is deemed necessary :)
Referee of south atlantic islands
silvestervermolen
Ingressou: 28 Nov 2024
Publicações: 20
Publicado: 3 Nov 2025, 22:22
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Publicado: 3 Nov 2025, 22:22
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But the width is very different. Couldn't we make an estimated width and then see if that is about accurate
Frenchlover
Árbitro de catálogo
Ingressou: 16 Jul 2013
Publicações: 13619
Publicado: 3 Nov 2025, 22:32
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Editado: 3 Nov 2025, 22:36
Publicado: 3 Nov 2025, 22:32
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Editado: 3 Nov 2025, 22:36
Aluminium: Thickness ~5,1mm
Coppernickel : Thick ~1,6 mm
Silver (pure): Thick ~1,3 mm
The ice-cube test is easy, compare with a 1 Gulden - Juliana (1954-1968)
Referee of south atlantic islands
silvestervermolen
Ingressou: 28 Nov 2024
Publicações: 20
Publicado: 3 Nov 2025, 22:42
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Publicado: 3 Nov 2025, 22:42
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Hoe exactly does the icecube test work and does it affect the state of my coin?
Frenchlover
Árbitro de catálogo
Ingressou: 16 Jul 2013
Publicações: 13619
Publicado: 4 Nov 2025, 07:35
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Publicado: 4 Nov 2025, 07:35
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Ice cube test , there is absolutly no risq for your medal.
Referee of south atlantic islands
spauldingph
Ingressou: 4 Abr 2025
Publicações: 316
Publicado: 5 Nov 2025, 19:31
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Editado: 5 Nov 2025, 19:39
Publicado: 5 Nov 2025, 19:31
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Editado: 5 Nov 2025, 19:39
I've had a ‘senior’ moment here. The ice cube test is by far the simplest after the magnet. It capitalizes on the fact that silver is a great conductor of heat. There's a scientific name for this but can't think of it. Of course, copper is as well, which is why better stainless steel cookware have copper bottoms. But silver is better.
There's also a fairly simple density test, outlined in the hard-to-find https://en.numista.com/numisdoc/ .
Frenchlover
Árbitro de catálogo
Ingressou: 16 Jul 2013
Publicações: 13619
Publicado: 5 Nov 2025, 20:36
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Publicado: 5 Nov 2025, 20:36
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The density test by immersion in water is much more complex to perform. For good accuracy, it is best to use a container with a narrow neck.
Referee of south atlantic islands
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