Australian-Coins Forum

Australian Coins, Banknotes and Exonumia => Australian Errors and Varieties => Topic started by: SirDave on November 15, 2014, 09:20:06 PM

Title: 2013 20c Bad Planchet?
Post by: SirDave on November 15, 2014, 09:20:06 PM
Here is a lovely coin I noodled a couple of months ago that I really like. It looks great in the hand.

I am convinced it is not PMD as there is no evidence whatsoever of any scratches, dents, impact etc.

It looks like the planchet was badly formed on one side and there are noticeable cavities in it which are very jagged and crystalline looking.

It weighs 11.04g  (vs 11.31g) so I suspect the void spreads deeper into the coin.

[attachment=3018][attachment=3019]
[attachment=3020][attachment=3021][attachment=3022]
Title: RE: 2013 20c Bad Planchet?
Post by: robbiegal on November 15, 2014, 10:05:19 PM
It is interesting. Almost looks like some other material was in the planchet and it has since disintegrated maybe during the minting process
Title: RE: 2013 20c Bad Planchet?
Post by: nealeffendi on November 16, 2014, 03:53:02 AM
Looks kosher, I have seen many like that in pre decimals but not in decimals, nice find.
Title: RE: 2013 20c Bad Planchet?
Post by: markn on November 16, 2014, 06:54:09 AM
Looks like the real deal to me too.  What a great find!
Title: RE: 2013 20c Bad Planchet?
Post by: Nevol on November 16, 2014, 07:13:55 AM
Nice find. It's great to get such a nice planchet error coin from circulation. :good:
Title: RE: 2013 20c Bad Planchet?
Post by: Unicorn on November 16, 2014, 07:38:18 AM
That's a beaut Dave. You've had some good finds in your noodling.
Title: RE: 2013 20c Bad Planchet?
Post by: keldaw on November 16, 2014, 08:29:15 AM
AND  also great pic dave  , I will have to come around to get some

lessons , on how to use a camera ..

  keep um coming mate ..   ,, kel ,,
Title: RE: 2013 20c Bad Planchet?
Post by: purplepennyhunter on November 16, 2014, 08:30:37 AM
I haven't seen anything like that in more recent decimals. Looks real to me.
Title: RE: 2013 20c Bad Planchet?
Post by: Goldseeker on November 16, 2014, 09:36:40 AM
Interesting.   I haven't seen anything like that at all.
Title: RE: 2013 20c Bad Planchet?
Post by: tezza on November 17, 2014, 06:55:50 PM
strange indeed, first coin I have seen with that type of rim, mint damage
Title: RE: 2013 20c Bad Planchet?
Post by: accumulator on November 18, 2014, 08:01:44 PM
Excellent Find & Congrats to you SirDave, i must get back into noodling.:ok:
Title: RE: 2013 20c Bad Planchet?
Post by: nealeffendi on November 18, 2014, 10:19:44 PM
A decimal minting expert might be able to answer this. Do they still form the rims the way they did years ago? Because if they do then this coin would show the Blakesly Effect on the opposite rim if the defective bit on the rim fell off before rimming. And if they do still form the rim the same way then the lack of the Blakesly Effect would prove the bit fell off after the rimming stage.
Title: RE: 2013 20c Bad Planchet?
Post by: SirDave on November 20, 2014, 07:43:42 AM
I might email the mint, perhaps they have a quality control dept that would be interested.
Title: RE: 2013 20c Bad Planchet?
Post by: robbiegal on November 20, 2014, 07:57:44 AM
nope doubt it
Title: RE: 2013 20c Bad Planchet?
Post by: Goldseeker on November 20, 2014, 05:59:53 PM
Quality control, you must be joking!