I have finally made some time to sort out my collections. Part of this is a section called "Errors" yes I know how to spell it 
This ranges from Pennies up to Modern Decimal coins. It is not an area I actively pursue, however if I see something or I pick it out if a bulk collection. It definitely goes into the error collection, most cases it is just just luck ?
In no particular order,
1. 1919 1d Dot below bottom scroll. Well lucky it is still there. This is caused by impurities in the planchet. When under pressure it blows out. It looks like this coin has still seen a lot of circulation before it found it's way into Aus's stash.
2. 1922 1d "Spur" on N in Penny, you can see why they call them a spur. Can anyone tell me how this actually happens, it is not what you think.
3. 1924 1d With a nice Die Crack running through the "24" through to the rim. A die crack is quite common in errors. If you are to look for something this is one you would likely find. This is caused when the die is starting to weaken and metal gets pushed into the cracks. After time the crack will get too big and it will break off.
4. 1939 1d Slag after A in Australia. Also another error as well. Slag is the same as a die crack except more in one area, is my understanding. There is also another error, can you see it ?
5. 1943 1d Error strike, the coin has not ejected or loaded properly, causing an area not to be pressed.
[imgz=http://forums.silverstackers.com/uploads/181_img_4509ss.jpg]
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[imgz=http://forums.silverstackers.com/uploads/181_img_4510ss.jpg]
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6. 1962 1d Double strike with rotation. The witch nose it what it looks like. This also creates a lot of unique errors across the coin. Look around the rims and in between lettering.
7. 1938 1d This is someone having some fun I believe, or some type of error. I have not been able to work this one out as of yet. Looks like a lot of work just for fun ?
[imgz=http://forums.silverstackers.com/uploads/181_19381d_error_mag_30.jpg]
[/imgz]
8. 1960 1d Thin Planchet. This is really thin, sometimes people would put them on railway tracks and squash them. I don't believe this is the case as the size is exactly the same as a usual penny, when flattened they are normally a little bigger I believe ?
9. 1d Blank Planchet, never stamped either lost, or ejected without being punched. Year unknown !
10. 1942 3d Another after minting attack, this time someone either pressing or bashing the imprint of another 3d. The date being different means it is after the minting process.
11. 1949 3d Collar error, it has either been jammed or not properly ejected from the die. Causing the edge to curve, this is about a big as a 3d offset I have seen. It is also rotated as you can see by reverse.
[imgz=http://forums.silverstackers.com/uploads/181_img_4519ss.jpg]
[/imgz]
12. 1951 3d PL This is different in that the Planchet appears to be rough. Either that or it is a copy ? The texture is similar to sand blasted with little pits. Yet the die strike is all in good condition. A very different one, and one of my earlier finds. I showed someone and they said, yeah nothing out of place. I have kept it as it is different. I have put another 1951 3d so you can see the difference. There was also a nice find when looking at this as well again not the obvious one either.
[imgz=http://forums.silverstackers.com/uploads/181_img_4531ss.jpg]
[/imgz][imgz=http://forums.silverstackers.com/uploads/181_img_4533ss.jpg]
[/imgz][imgz=http://forums.silverstackers.com/uploads/181_img_4534ss.jpg]
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13. 1954 6d (Shilling) Similar to the 1919 1d, fault in planchet causing a blowout.
14. 1942 2/- This is another after mint attack I believe, where the obverse has been machined flat, then engraved with some Letters. Around this time was WWII and a lot of coins were used as love tokens. Not sure if this was the case. I don't believe it to be a specimen or test unit, as the obverse planchet does not have the risen edge. Still something different.
[imgz=http://forums.silverstackers.com/uploads/181_img_4521ss.jpg]
[/imgz]
15. 1982 2c Clipped planchet. These are normally round, caused by the cutter not ejecting the blank from the machine. In this case I believe it to be the end of the bar, they had been using. Hence the straight cut. There are no signs on the other side that the coin had been clamped to create such a cut.
16. 2c Blank Planchet year unkown !
17. 1968 2c Missing Foot, weak strike. Also the 1968 is the key coin in the series. I have 2 of these now.
18. 1976 10c Someone with a little too much time on their hands. Otherwise not sure.
19. 1972 20c Uncirculated Mint Set. This is a real rare error in My opinion and probably my favourite. It goes to show that things get through. This is a planchet error or clipped when punching. I believe this could be the only one in existence for this year. Also the 1972 is a key date in the Decimal series. I only saw it a few years after I had purchased it. So that is why you should look at things. I don't know of the value but it would be a lot more than a usual 72 set.
So there you go 19 varieties and errors. Please feel free to add yours as well. As I come across some more I will add them in.
Aus
This ranges from Pennies up to Modern Decimal coins. It is not an area I actively pursue, however if I see something or I pick it out if a bulk collection. It definitely goes into the error collection, most cases it is just just luck ?
In no particular order,
1. 1919 1d Dot below bottom scroll. Well lucky it is still there. This is caused by impurities in the planchet. When under pressure it blows out. It looks like this coin has still seen a lot of circulation before it found it's way into Aus's stash.
2. 1922 1d "Spur" on N in Penny, you can see why they call them a spur. Can anyone tell me how this actually happens, it is not what you think.
3. 1924 1d With a nice Die Crack running through the "24" through to the rim. A die crack is quite common in errors. If you are to look for something this is one you would likely find. This is caused when the die is starting to weaken and metal gets pushed into the cracks. After time the crack will get too big and it will break off.
4. 1939 1d Slag after A in Australia. Also another error as well. Slag is the same as a die crack except more in one area, is my understanding. There is also another error, can you see it ?
5. 1943 1d Error strike, the coin has not ejected or loaded properly, causing an area not to be pressed.
[imgz=http://forums.silverstackers.com/uploads/181_img_4509ss.jpg]
[imgz=http://forums.silverstackers.com/uploads/181_img_4510ss.jpg]
6. 1962 1d Double strike with rotation. The witch nose it what it looks like. This also creates a lot of unique errors across the coin. Look around the rims and in between lettering.
7. 1938 1d This is someone having some fun I believe, or some type of error. I have not been able to work this one out as of yet. Looks like a lot of work just for fun ?
[imgz=http://forums.silverstackers.com/uploads/181_19381d_error_mag_30.jpg]
8. 1960 1d Thin Planchet. This is really thin, sometimes people would put them on railway tracks and squash them. I don't believe this is the case as the size is exactly the same as a usual penny, when flattened they are normally a little bigger I believe ?
9. 1d Blank Planchet, never stamped either lost, or ejected without being punched. Year unknown !
10. 1942 3d Another after minting attack, this time someone either pressing or bashing the imprint of another 3d. The date being different means it is after the minting process.
11. 1949 3d Collar error, it has either been jammed or not properly ejected from the die. Causing the edge to curve, this is about a big as a 3d offset I have seen. It is also rotated as you can see by reverse.
[imgz=http://forums.silverstackers.com/uploads/181_img_4519ss.jpg]
12. 1951 3d PL This is different in that the Planchet appears to be rough. Either that or it is a copy ? The texture is similar to sand blasted with little pits. Yet the die strike is all in good condition. A very different one, and one of my earlier finds. I showed someone and they said, yeah nothing out of place. I have kept it as it is different. I have put another 1951 3d so you can see the difference. There was also a nice find when looking at this as well
again not the obvious one either.
[imgz=http://forums.silverstackers.com/uploads/181_img_4531ss.jpg]
13. 1954 6d (Shilling) Similar to the 1919 1d, fault in planchet causing a blowout.
14. 1942 2/- This is another after mint attack I believe, where the obverse has been machined flat, then engraved with some Letters. Around this time was WWII and a lot of coins were used as love tokens. Not sure if this was the case. I don't believe it to be a specimen or test unit, as the obverse planchet does not have the risen edge. Still something different.
[imgz=http://forums.silverstackers.com/uploads/181_img_4521ss.jpg]
15. 1982 2c Clipped planchet. These are normally round, caused by the cutter not ejecting the blank from the machine. In this case I believe it to be the end of the bar, they had been using. Hence the straight cut. There are no signs on the other side that the coin had been clamped to create such a cut.
16. 2c Blank Planchet year unkown !
17. 1968 2c Missing Foot, weak strike. Also the 1968 is the key coin in the series. I have 2 of these now.
18. 1976 10c Someone with a little too much time on their hands. Otherwise not sure.
19. 1972 20c Uncirculated Mint Set. This is a real rare error in My opinion and probably my favourite. It goes to show that things get through. This is a planchet error or clipped when punching. I believe this could be the only one in existence for this year. Also the 1972 is a key date in the Decimal series. I only saw it a few years after I had purchased it. So that is why you should look at things. I don't know of the value but it would be a lot more than a usual 72 set.
So there you go 19 varieties and errors. Please feel free to add yours as well. As I come across some more I will add them in.
Aus
