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https://www.silverrecyclers.com/blog/830-silver.aspx
An 830 silver tea strainer How to Find Markings. Markings are easy to spot for any type of silver piece. You should clearly see the number 830 or 830S engraved on the piece. If you have a piece of jewelry then the number may be smaller and more concealed, but it should still be visible.
https://www.answers.com/Q/What_does_830_mean_when_stamped_on_metal
Sep 24, 2011 · 830 is real silver, your item is probably danish or from finland but its a lower grade of silver as in uk its 925 What does TI mean stamped on a necklace? As the Common Metal Marks Stamped Inside ...
http://www.silvercollection.it/DICTIONARYEUHALLMARKNORWAY.HTML
In 1920, standard .925 started to replace .830 purity. At the present purity 999, 925, 830 and 800 are admitted for silver items, but .925 is the foremost standard in use. OTHER MARKS ON NORWEGIAN SILVER AND SILVERPLATE The "NM" mark, often present in Norwegian silver, is the abbreviation of "Norskt Mönster" meaning Norwegian pattern. It is a ...
https://www.etsy.com/market/830s_jewelry
Vintage Th. Marthinsen Adjustable Silver Spoon Ring - 8 - Scandinavian Jewelry, Flower Spoon Ring, 830S NM 356, Norway, Sideways Chalice. TheLostAreFound. 5 out …
https://www.thesprucecrafts.com/silver-marks-and-terms-149394
Dec 18, 2020 · Marks can include 800, 825, 830, or 850, indicating 80, 82.5, 83, and 85% silver content, respectively. Silverplate: The silver content in silverplated wares is minimal. A silverplate marking, sometimes incorporated into a manufacturer’s mark, indicates that the item was made by electroplating a base metal with a relatively thin coating of ...
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