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 Replies: 12 / Views: 1,825 |
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New Member
Canada
8 Posts |
Hello. Has anyone who has this coin done a specific gravity test on it. I have the 33mm sliver PM version. It weighs 19.27 grams. I'm getting a reading of 10.60 pure silver. All the info I have found says it's sterling which means I should be getting around 10.30 I always get accurate enough readings when I do a SG test. This coin is throwing me off.
*** Moved by Staff to a more appropriate forum. ***
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Pillar of the Community
 Canada
9864 Posts |
Neither a coin nor token, it's a medal.
We need pics in order to help you.
"Dipping" is not considered cleaning...
-from PCGS website
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Pillar of the Community
Canada
1463 Posts |
I understood they're close to if not pure
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Bedrock of the Community
Australia
21786 Posts |
If sterling silver, S.G. calculates at:
pure silver S.G. 10.5 x 925 = 9712.5
Pure copper S.G. 8.93 x 75 = 669.75
(9712.5 + 669.75) divided by 1000 = 10.38 S.G.
If it is pure silver, S.G. is obviously 10.5, and cannot be higher.
Edited by sel_69l
01/04/2020 05:36 am
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New Member
 Canada
8 Posts |
"We need pics in order to help you." So you can tell the percentage of silver from a picture? Ok.   |
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Pillar of the Community
Canada
5240 Posts |
It is impossible to tell the percentage of silver from a picture.
There are machines that some dealers have which can tell if it is 50, 80, 90, 92.5 or pure silver, without scratching the item.
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Pillar of the Community
Canada
9864 Posts |
Quote:
So you can tell the percentage of silver from a picture? No we can't. But now we know which medal you are asking about. A few different silver medals were issued to commemorate the occasion. Yours was issued by the government and is by far the most common 1939 silver medal. These are supposed to be .925, sterling. "Dipping" is not considered cleaning...
-from PCGS website
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New Member
Canada
8 Posts |
Oriole. I was being a bit sarcastic, but it gave me a reason to show off my coin. Yes they have some sort of ultrasonic machine that can tell you the karrot of gold or percentage of silver and many other grades of metals.
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New Member
Canada
8 Posts |
DBM. There was enough info in my post to know exactly which coin I was talking about without pictures. The question didn't need pictures to be answered. Obviously you can't tell what metal is in a coin from a picture. That was a joke.
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Pillar of the Community
Canada
9864 Posts |
Quote:
There was enough info in my post to know exactly which coin I was talking about without pictures. No there wasn't. If there was I wouldn't have asked, and it's still not a coin. "Dipping" is not considered cleaning...
-from PCGS website
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Moderator
 United States
188440 Posts |
 to the Community! |
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Pillar of the Community
Canada
5394 Posts |
As stated an official Royal Canadian Mint Medal issued in 925 Silver . They were sold contained in a small cardboard box for the princely sum of 50 Cents each . A similar sized Bronze one was sold for 10 cents . The smaller bronze medals were given to school children in Commemoration of the 1939 Royal Visit . |
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Bedrock of the Community
Australia
21786 Posts |
XRF instruments test the surface only of medal or coin.
If the medal or coin is plated the information obtained from an XRF instrument is useless.
That background makes S.G. testing a bit more relevant, but certainly not conclusive in it's own right.
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Replies: 12 / Views: 1,825 |
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Posted 01/03/2020 11:16 pm
