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USA Army ring
Old 08-10-2019, 04:34 AM   #1
Byakkotai
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Default USA Army ring

Hi guys: Sorry but not idea I have about rings (not my field). I would like to know the period time were the ring was made (if it is original). The ring comes in a very small group with a "Good Conduct decoration medal" as you can see and, after confirming, it seems to be made in gold.
Thank you very much in advance.
Ricardo
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Old 08-10-2019, 08:24 AM   #2
Johnny Peppers
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Looks like a "PX" ring that GI's could buy. I don't know that I have seen one in gold, as what I have seen were in sterling silver.

If gold it should be marked inside with gold content. If solid gold (not plated) it should be marked 10K or 14K, and if plated RGP with the fractional gold content.
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Old 08-10-2019, 09:07 AM   #3
Byakkotai
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Thank you very much Johnny: Seems to have something like a mark (or hallmark) inside, but difficult to see (maybe 10K?). I will try with nitric acid test (in fact it is not magnetic).
Best Regards

Ricardo
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Old 08-10-2019, 11:05 AM   #4
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That appears to be the mark for 10K gold, or 41.6% pure gold alloyed with something else.

If you try acid testing it, rub a mark on a fine abrasive stone and put the acid on the mark rather than the ring. Jewelers normally have a kit with various strength acid to test for the different karat.
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Old 08-14-2019, 08:06 AM   #5
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Hi Johnny: After the acid testing; it is gold, but not 10k only 9k (¡the jeweler stole the poor vet with a low gold quality!). The mass testing is 4.078.......that means 9k without doubts.

Best regards

Ricardo
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Old 08-14-2019, 09:37 AM   #6
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Curious as to how you tested the purity out to three decimal places. The standard is to use a touchstone, a very fine abrasive stone, and acid of a known strength. Nitric acid for 10K and 14K, and a mix of nitric and hydrocloric acid for higher karat.

American jewelers are alllowed a percentage of leeway in the actual gold content.

Even European jewelery that is marked by percentage is not exact unless so marked. 417 = 10K, 585 = 14K, and 750 = 18K, but the percentage mark is followed by a letter ( a P maybe) if the mark is exact.
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