I couldn't see a thread devoted to lamination flaws although I did only get through about 3 of the 22 pages of topics in this category.
One I found recently with something interesting going the width of the coin.
What I originally thought was a delamination but may be a cold shut the 12.00 o'clock on the obverse. It also shows a peel starting at the top of the hairline:
(http://www.australian-coins.net/gallery/albums/userpics/10124/Photo2.jpg)
Secondly the obverse showing a raised "mound" running the width of the coin from 12.00 o'clock to 6.00 o'clock. I suspect either delamination or some sort of chemical reaction forcing it up:
(http://www.australian-coins.net/gallery/albums/userpics/10124/Photo1.jpg)
And the least interesting a lamination at 6.00 o'clock on the obverse.
(http://www.australian-coins.net/gallery/albums/userpics/10124/photo3.jpg)
Is that a whole raised section from 11 o'clock down through the head towards 5 o'clock?
What a beaut!
yeah it looks like it might split in half, doing well Steve!
Quote from: 'Unicorn' pid='57215' dateline='1408177506'Is that a whole raised section from 11 o'clock down through the head towards 5 o'clock?
Yes. Not sure what caused it though. You can also see some flaking on that raise at the tiara.
What does the reverse look like Steve?
Quote from: 'Unicorn' pid='57220' dateline='1408178511'What does the reverse look like Steve?
Nothing out of the norm.
Not sure what is happening with these images. I save them at 6" x 6" but it seems to be posting them as 10" x 10"
(http://www.australian-coins.net/gallery/albums/userpics/10124/REverse.jpg)
10x10 is super good for me Steve!
Gee that is such an unusual coin. I've never seen anything like the ridge. There's doesn't seem to be a hair out of place!!!
Quote from: 'Steveqld' pid='57212' dateline='1408175962'may be a cold shut
Yes, its a cold shut. Or several, by the look of it. I would guess that section in the hair might well drop out at some stage.
Nice coin.
I'm suspecting that there is a lamination flaw under the length of the ridge. When struck by the die the metal flow has gone inwards as well as outwards and with nowhere else to go has raised and caused the ridge.
My theory anyway.
I'd expect that this coin is fraught with lamination flaws
and could end up a bit like this penny in a few more decades
(http://i1285.photobucket.com/albums/a585/auntyrobbs/shot%20and%20exploded%20pennies%20aug%202014/P5140140_zps8ec2aff7.jpg)(http://i1285.photobucket.com/albums/a585/auntyrobbs/shot%20and%20exploded%20pennies%20aug%202014/P5140142_zpsafc69c1b.jpg)(http://i1285.photobucket.com/albums/a585/auntyrobbs/shot%20and%20exploded%20pennies%20aug%202014/P5140141_zpsf9e4a38e.jpg)
JESUS CHRIST RG, ya better get that one out when I come down as that is awesome mate :drooling:
Awesome RG :yahoo:
Pedro
(http://blogs.panasonic.com.au/consumer/wp-content/uploads/2014/01/lamingtons.jpg)
What? Oh, you said "lamination", not "lamington"!
No Jeff but I found something to help us, a machine :)
(http://i58.tinypic.com/wgt9xt.jpg)
My wife has one of those things - never thought of using on coins! :biggrin:
Pedro
I'm not sure but think some of the different world mint sets come done like that so could always try on a few rubbish coins first to see how it goes Pedro, if anyone can confirm please :hi:
I've often rec'd coins packed in such a way that it's obvious that's what's been used to seal them in. They're mostly from the US and I always removed them so I can store them MY way.
Quote from: 'Nevol' pid='57337' dateline='1408319533'I've often rec'd coins packed in such a way that it's obvious that's what's been used to seal them in. They're mostly from the US and I always removed them so I can store them MY way.
They're not packed on one of those machines. AJ, don't even think about it... you'll bugger the machine! They're designed for paper or light card thicknesses.
There are machines designed for the job however, and it still comes down to heat, pressure and the type of films being used. And possibly vacuum, since a lot of this gear is designed to vacuum-pack food.
Done right, with the right films, its an awesome way to pack coins.
.... or Lamingtons, come to think of it. ;)
Quote from: 'ausjack' pid='57330' dateline='1408318029'No Jeff but I found something to help us, a machine :)
(http://i58.tinypic.com/wgt9xt.jpg)
remember the one I have , I have never done coins but I have done notes ,
$ 20.00 x 2 ,$ 10.00 x 2 , $ 5.00 x 2 , $ 2.00 x 5 , $ 1.00 x 10
and the only ones I had trouble with were the $ 2.00 notes ..
2 years later I opened them all up , one at a time and all the others were good but the $ 2.00 ones split in half , each half was left stuck to each side of the laminate plastic sleeve . ,, kel ,,
Quote from: 'keldaw' pid='57397' dateline='1408347711'$ 2.00 ones split in half , each half was left stuck to each side of the laminate plastic sleeve . ,, kel ,,
These things melt two sheets of plastic film, and squeeze them together, with something in between. The films bond, forming a single piece of plastic around the edges.
Over the contents however, the molten plastic binds with the contents if it can. When separated, it may mark the surface. It may peel the ink off. And if the bond is stronger than the material, it will split it in half.
Never ever laminate anything you may ever want to not be laminated ever again. Ever. :angel:
I have scanned all my lamination flaws into my GALLERY above.
Here's the link:
http://www.australian-coins.net/gallery/thumbnails.php?album=134
here's nice pre-decimal Lamination flaw error coin that I picked up today
had some fun at the coin show today!
(http://i1285.photobucket.com/albums/a585/auntyrobbs/P9070540_zps683014a8.jpg)
Quote from: 'robbiegal' pid='58766' dateline='1410089871'here's nice pre-decimal Lamination flaw error coin that I picked up today
had some fun at the coin show today!
A beauty!
fanks birdie
I started to wonder if any body was home!
A pearler RG! Great impression of the 48.
Quote from: 'robbiegal' pid='58766' dateline='1410089871'here's nice pre-decimal Lamination flaw error coin that I picked up today had some fun at the coin show today!
Very nice! :wavemulticolor: