Metal content?

Discussion in 'US Coins Forum' started by Tre, Dec 9, 2004.

  1. Tre

    Tre Member

    First off I'd like to point out that I'm a world coin collector. I collect to touch the world, not to invest for value. I recently recieved a lot of coins from various African nations, all in those little cardboard flips. Written on the flip is the date, country, and denomination (but not the grade, oddly)

    Some also have a set of letters on them:

    SS.
    CP
    BR/STL
    BR
    AL

    I'm guessing these are meant to indicate the metal to coin was minted from, but I'm not sure. Can anyone clarify?
     
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  3. susanlynn9

    susanlynn9 New Member

    I think you may be correct. I'm not sure about the "SS", but I would think that:
    CP-Copper
    BR/STL-Bronze-Steel (is this coin bi-metallic with an outer ring of a different material than the core?)
    BR-Bronze
    AL-Aluminum
    Maybe someone else will have an idea of the "SS".
     
  4. GDJMSP

    GDJMSP Numismatist Moderator

    SS = stainless steel.
     
  5. susanlynn9

    susanlynn9 New Member

    Thanks, GD. I kept trying to make it work with "Silver" somehow. :)
     
  6. collect4fun

    collect4fun Senior Member


    Would they make coins of Sterling Silver (SS) ?
     
  7. GDJMSP

    GDJMSP Numismatist Moderator

    It has been done but rarely - and never a coin meant for circulation.
     
  8. satootoko

    satootoko Retired

    Oh come on Doug, you know better than that. :rolleyes:

    The Great Britain pages of the 19th Century Krause are loaded with .925 silver pennies, 1-1/2, 2, and 3 pence, groats, shillings, florins, 1/2 crowns, double florins, and crowns; and the last time I checked, that was sterling silver. ;) There are even a few in the early 20th Century. :cool:
     
  9. susanlynn9

    susanlynn9 New Member

    I thought that Sterling silver was jewelry grade and not the same purity as that used for coins.
     
  10. GDJMSP

    GDJMSP Numismatist Moderator

    You're probably right Roy - what you say makes sense. But I've always thought sterling silver was .999.
     
  11. satootoko

    satootoko Retired

    I guess anything from .925 to 1.000 qualifies Doug.
     
  12. JBK

    JBK Coin Collector

    Interesting about the Sterling silver. I knew it was .925, but I did not know it was “at least” .925.

    I guess someone would be stupid, though to make something of pure silver and mark it “sterling”, since they could alloy it down to .925 and still be able to mark it sterling.
     
  13. Tre

    Tre Member

    Ah, thanks. Yeah, I was trying to make SS Sterling Silver too, but that didn't seem right. The coin is in incredibly good condition for that. Which... is why I decided to ask the experts.

    "BR/STL-Bronze-Steel (is this coin bi-metallic with an outer ring of a different material than the core?)"
    No, it is all a coppery color.
     
  14. JBK

    JBK Coin Collector

    Probably a steel core, then. That is vetry common these days.
     
  15. Andy

    Andy Coin Collector

    The word "Sterling" is the best known and most respected marking in use today. Pure silver alone is too soft for everyday use. Copper is the metal commonly used to give "Sterling" its added stiffness and wearing qualities. Sterling is often referred to as solid silver. It is composed of 925 parts pure silver in every 1000 -- this proportion never varies -- it is fixed by law. Gee I thought everybody learned this at finishing school.
     
  16. satootoko

    satootoko Retired

    And what law is that? I never ran across it in law school or in my 40 years of practice.
     
  17. Art

    Art Numismatist?

    I'd guess that SS could be stainless steel.
     
  18. susanlynn9

    susanlynn9 New Member

    That's what Doug suggested and I agreed. Then the Sterling discussion began......
     
  19. Andy

    Andy Coin Collector

    § 23.6 Misrepresentation as to silver content.

    (a) It is unfair or deceptive to misrepresent that an industry product contains silver, or to misrepresent an industry product as having a silver content, plating, electroplating, or coating.

    (b) It is unfair or deceptive to mark, describe, or otherwise represent all or part of an industry product as "silver," "solid silver," "sterling silver," "sterling," or the abbreviation "ster." unless it is at least 925/1,000ths pure silver.
     
  20. sylvester

    sylvester New Member

    Right Doug, the UK has used Sterling silver for all its silver coins from the 1660s to 1920 when it was downgraded to half silver.

    Sterling silver is always .925 silver, with the remained being usually copper.

    The silver Britannias are to my knowledge .958 silver and this is 'Britannia Silver', other bullion 'coins' tend to use .999 silver. So you're getting less pure silver in the UK bullion 'coins'.


    Sterling is ALWAYS .925 Ag.
     
  21. JBK

    JBK Coin Collector

    I am quite sure it is the law in the UK at least, and I would not be surprised if it were law in the US. Or, to put it another way, it would be against the law to mark lesser silver "sterling" and pass it off as sterling (wouldn't it?!?!?!).
     
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