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All Forums Category: Australia, New Zealand, and South Pacific (Oceania) Coins and Currency Forums Forum: Coins, Bank Notes, and Paper Money: Australia, New Zealand, & South Pacific (Oceania)

1911 One Penny Question

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Linda55777
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 Posted 02/12/2011  9:15 pm Show Profile   Bookmark this topic Add Linda55777 to your friends list Get a Link to this Message Number of Subscribers
I found this 1911 Australia one penny that is suppose to weigh 9.5 gram but only weighs 8.7 g is this errored.


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1911-One-Penny-Question

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 Posted 02/13/2011  12:28 am  Show Profile   Bookmark this reply Add Sap to your friends list Get a Link to this Reply
Hi Linda, welcome.

The "book weight" of an uncirculated penny is 9.45 grams. Your coin is quite worn, which would likely have caused a slight drop in mass. It may also have been cleaned at one stage, which would have caused some more mass loss. So I'm not sure if there's enough "missing mass" for it to qualify as an error.

You might also want to confirm the balance you're using is reading correctly. Depending on the quality, a 1-decimal-point balance can be out by several tenths of a gram.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
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