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silvestervermolen
Registrado: 28 nov 2024
Mensajes: 20
Publicado: 31 oct 2025, 22:37
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Publicado: 31 oct 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
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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
Registrado: 28 nov 2024
Mensajes: 20
Publicado: 3 nov 2025, 0:18
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Publicado: 3 nov 2025, 0:18
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No one is starting what material it is. What is the best way for me to find out?
Frenchlover
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Publicado: 3 nov 2025, 7:46
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Publicado: 3 nov 2025, 7:46
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Precise measure of width, diameter and weight. Magnetic or not might be sufficient to roughtly determine the alloy.
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silvestervermolen
Registrado: 28 nov 2024
Mensajes: 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
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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.
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silvestervermolen
Registrado: 28 nov 2024
Mensajes: 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
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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
Registrado: 28 nov 2024
Mensajes: 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
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Publicado: 3 nov 2025, 22:32
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Modificado: 3 nov 2025, 22:36
Publicado: 3 nov 2025, 22:32
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Modificado: 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)
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silvestervermolen
Registrado: 28 nov 2024
Mensajes: 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
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Publicado: 4 nov 2025, 7:35
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Publicado: 4 nov 2025, 7:35
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Ice cube test , there is absolutly no risq for your medal.
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spauldingph
Registrado: 4 abr 2025
Mensajes: 318
Publicado: 5 nov 2025, 19:31
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Modificado: 5 nov 2025, 19:39
Publicado: 5 nov 2025, 19:31
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Modificado: 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
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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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