Welcome!

Log in or register to take part.

CONECA (pronounced: CŌ´NECA) is a national numismatic organization devoted to the education of error and variety coin collectors. CONECA focuses on many error and variety specialties, including doubled dies, Repunched mintmarks, multiple errors, clips, double strikes, off-metals and off-centers—just to name a few. In addition to its website, CONECA publishes an educational journal, The Errorscope, which is printed and mailed to members bimonthly. CONECA offers a lending library, examination, listing and attribution services; it holds annual meetings at major conventions (referred to as Errorama) around the country.

CONECA was formed through a merger of CONE and NECA in early 1983. To learn more about the fascinating HISTORY OF THE ERROR HOBBY and THE HISTORY OF CONECA, we encourage you to visit us our main site Here

If you're not a member and would like to join see our Membership Application

We thank everybody who has helped make CONECA the great success that it is today!

Register Now

50 lire dropped digit and 200 lire lines over rim

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
  • andrea78ts
    • Dec 2013
    • 32
    #1

    50 lire dropped digit and 200 lire lines over rim

    Hi,
    I have these two coins.
    The first one is a 50 lire 1955 with (I think) a dropped-digit error. The digit is in incuse. How can I verify it is a genuine error?
    The second one is a 200 lire 1993 with some concentric lines over the rim. Which kind of error is it? How is it caused?
    Thanks
    Andrea
    Attached Files
    Tags: None
  • diamond
    • Jul 2007
    • 2040
    #2
    I suspect the 1955 50 lire has an authentic dropped number. However, these are very difficult to authenticate when they appear in the field. It's much easier to tell it's authentic when it crosses the design.

    As for the fine concentric lines on the design rim, I'm not sure. They may be concentric lathe marks, providing the rim gutter is machined into the die face, rather than it being hubbed into the die face.
    Mike Diamond. Error coin writer and researcher.

    Comment

    • andrea78ts
      • Dec 2013
      • 32
      #3
      Thank you Mike, very interesting as usual.
      As for concentric lines I post here under another coin (50 lire 1995) in which the effect is stronger. This could reinforce the thesis that Italian Mint cut off the rim gutter with a lathe instead of hubbing it.
      Attached Files

      Comment

      • andrea78ts
        • Dec 2013
        • 32
        #4
        Mike, just a further thought. Maybe the fact that in Italian coinage the gutter is machined into the die face after hubbing could be connected with frequent cases of doubled rim (see my previous post on this topic). Maybe this operation can heat the die and make it softer, deforming the die face close to the rim.
        Just a guess…could it be reasonable?

        Comment

        Previous template Next
        Working...
        X