Canadian Error Coins

Welcome to the Canadian Error Coins website!

Is this the last clipped cent for circulation?

 Unusual Brockage

Double Clip - Copper Plated Steel
2012 was the last year for the cent coin. 

Estimated Value - $175.00

Unusual Brockage - 2004 Copper Plated Steel 
It appears a stray cent that would have been a rotated strike struck this coin as a cap. Very rare occurance.
Estimated Value - $1,200.00

Painted Remembrance Day Quarters found in circulation.

Ragged Edge
Close up view

 2004 - Off Centre Paint
Rarely seen often. Occurs after the strike.
Estimated Value - $25.00
(Coins with the paint missing have no value as the paint is easily removed)

2004 - Ragged Edge
Optical sensors installed in 1985 to pick out errors have done a very good job as errors are seldom seen. They have also evolved to rotate coins to facilitate painting.
Estimated Value - $30.00

Struck Through
Close up view

Struck Through
Appears to be struck through a wire or staple.
Estimated Value - $25.00

Damaged coin
Not all odd looking coins are mint errors.
This coin was damaged after the strike and happened after it left the mint.
Estimated Value - No Premium Value

Struck on a Ballcone burnishing beads?

           2004 Five Cents 
    1.11 grams - Stainless Steel
      Estimated Value - $800.00

                 "Ballcone" Burnishing Bead-
                      1.11 grams - Stainless Steel
                      2004 Twenty Five Cents
                     1.21 grams - Stainless Steel
                    Estimated Value - $800.00

These coins appear to be struck on Stainless Steel Ballcones.

The 2004 Five cent coin shown above is 1.11 grams and is the same weight as the 3/16 type Ballcone. This coin also attracts a magnet the same way as a Ballcone burnishing bead. The 2004 Twenty Five cent coin shown is 1.21 grams and appears to be the same weight as the 1/4 type Ballcone. This coin also attracts a magnet the same way as a Ballcone burnishing bead.
The image of “Stainless Steel Ballcones” shown are similar to the type used by the Royal Canadian Mint (RCM) to “burnish” planchets. They weigh 1.11 grams, are magnetic and enlarged 5X in the image above. Burnishing is a process that involves tumbling the planchets in a large drum with small steel “ballcones”. This uniformly roughens or dimples the entire surface of the planchet and is fundamental in producing the finest coin possible. 

I first noticed these odd ballcones in a display at the RCM in Ottawa in the late 90’s. Evidence gathered by observing off centre coins indicated all planchets intended for circulating coins in the RCM have been burnished since about 1992 & 1993. Prior to that only planchets for numismatic issues were burnished. This also includes some foreign coinage for other countries. Coins struck by Canada for other countries are usually distinguishable as higher in quality of appearance that has been achieved in part by burnishing planchets.

Further information regarding Ballcones can be found at:
103, Crystal Towers,
75, Gundavli Gaothan Road No. 3,
Off Andheri Kurla Road, Andheri (E)
Mumbai - 400 069, Maharashtra, INDIA.

(Quote from site)
“Ballcones or Satellites (variously called saturn, sputnik, planet, UFO) are mixed with round steel ball and other steel burnishing media (diagonal, pin, eclipse) to achieve overall cleaning, consistent metal polishing and excellent mirror finish all over the component profile.
Functionality of Ballcones: Steel round ball is the most widely used shape in steel media. However, it is not always versatile, as a sphere cannot access corners. It is also unable to make contact in grooves or recesses if the steel ball diameter is larger than the groove width. In such cases, milky areas become apparent on the component surface where balls are unable to provide polishing action. Steel ballcone and satellite works very well in such areas for providing uniform finishing results. These steel ballcones are also useful for preventing media clogging in the components being polished.
Tolerance: Stringent dimensional controls are maintained and the tolerance on the dimensions are +/-0.25mm or +/-0.01" (250 microns) which are amongst the best in this industry.
Shape: One half of the steel ball-cone is a semi-sphere, the other half is a cone and both are separated by a sloping central flange. The semi-sphere provides rolling action for good luster, the cone accesses holes and grooves and the flange contributes in cleaning and finishing corners, collars and recesses. The overall shape prevents media clogging. A very versatile steel media.
Steel Material: Stainless steel or inox media, 300 series (typically AISI 304) is the one which is most widely used for metal polishing. It has excellent resistance to rust, corrosion and wear and can be used in conjunction with chemically aggressive burnishing compounds, both acidic and alkaline. Stainless steel requires no maintenance or after care during storage, non usage or idle periods. The burnishing performance remains consistent over long periods of time and it does not require replacement as no deterioration in quality takes place. The 300 series stainless steel are austenitic and are unhardenable by heat treatment. However, some work-hardening takes place during the cold-forging process. The media is passivated after final polish.”

Please inform if you have any information regarding these types of coins.

Struck through 2014 Loon dollar found in circulation in Quebec

This loon dollar was receive in change from a restaurant in the Mauricie region in Quebec.

It appears to be struck through a late stage cap and is quite rare on a modern loon.
There may be others to be found.
Estimated Value - $1,500.00
Please report any of these you may see.

Dollar struck on planchet intended for Lebanon Coinage

Lebanon 500 Livres - 1996
Struck by the Royal Canadian Mint

Canada Loon Dollar - 1996
Struck on a planchet intended for a Lebanon 500 Livres

6 Grams
Nickel Plated Steel

6 Grams
Nickel Plated Steel

Canada strikes coinage for many countries every year.
On rare occasion a coin will get struck on a planchet intended for a different purpose.

Estimated Value - $2,200.00

More information on Wrong Planchets.

More information on foreign coins by Canada

Non Plated Error Dollar Types

2005 Dollar

2006 Dollar

6.44 Grams
6.43 Grams
The Loon One Dollar coin is described as being 91.5% Nickel and 8.5% Brass with a total weight of 7 grams. 

  7 grams X .915 = 6.405 grams

These Loon Dollars appear to be on non plated planchets.

They do not match the specifications for any known
coin until the coloured hockey dollars minted in 2007.

Please inform muckwa if you have any
information regarding unplated coins

Nickel - 6.41 grams
Coloured Hockey Dollar

2008 - So called Light Core Two Dollar Coins

Light Core?

Dark Core?

 Unusual so called "Light Core"

Regular "Dark Core"

Every effort has been taken to capture the subtle difference in colour of the cores of these coins.
Both came from mint "uncirculated sets" dated 2008 and photographed under the same conditions.
There is no known physical difference between the two, except for the colour. 
The weight is correct and the core does not appear to be a foreign Planchet and remains a mystery. 

The 2008 mint report indicates the introduction of Titanium to plate dies, a change from Chrome. Could that be a factor..?
If you have any information that may be helpful, please contact

Estimated prices sold for - Uncirculated Set $90.00 - Proof Set $800.00

More Information on Two Dollar Error Coins

2$ - Planchet Varieties
 Edited 3-9-2014
2$ - Die Varieties
 Edited 3-6-2014
2$ - Strike Varieties
Details and images on recent "Bumpy Edge Twoonie's" being found in circulation, along with many other planchet type errors. Information on the different types of 2010 collar varieties and information regarding  other types of die varieties. Many different types of errors are being found in Canada. Info here on Off Centres and other errors.
Wrong Planchet Strikes
 Edited 3-23-2014

2$ - German Prefab Varieties

Altered Coins
Wrong planchet strikes are coins struck on planchets that they were not designed for. Includes Two Dollar off metals. This page is about the different types of errors that occur related to the pre-assembled German made planchet. Coins being deliberately altered to defraud collectors is the basis of this page.  1 & 2 dollar coins are featured.



Information regarding Errors and Die Varieties found in Canada on the Millennium Twenty-Five Cents series. This area provides a simple and comprehensive overview of the many types of Minting Varieties that we are aware of.

Information and Images of Canadian Error Coins
Commemorative Canada Canadian Over  Foreign  Foreign Over Canadian Silver Dollar Errors
Canadian coinage is rich in commemorative issues. Images of errors here from Canada's 125 Anniversary issue in 1992. Since 1908 the Royal Canadian Mint has produce coins for over 77 countries. Overstrikes are featured on this page. Occasionally a foreign coin will get struck on a planchet  for Canadian coinage.
Three coins to view.
Silver Dollar errors are seldom seen and highly sought for by collectors. This page features multi struck dollars and more.
Packaging Varieties Mint Postcards War Medals Numismatic Links
Packaging Errors in Proof Like sets from the RCM. Over 120 very interesting postcards of the RCM process (& others). Three error related war star medals produced by the RCM. Some interesting Numismatic links to check out on the net.

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Page created by: muckwa
Changes last made on: 03/05/22

Please direct all comments to: Patrick

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