2005 - Errors

SRI LANKA - Two Rupee

A Two Rupee Nickel plated Steel coin with a milled edge, was issued on December 22nd. The next day I obtained from the CBSL cash counter 100 coins taken from a single new Mint bag.

Among the 100 coins I found

These are not just random bag marks and blemishes seen on most of the coins. The appearance of the same significantly sized feature at the same location on more than one coin implies they are associated with a die. In fact when you identify one of these features it is easy to spot other examples of the same.

In mint production process, coins struck from different dies get collected and mixed in a large bin before being counted and packed into Rs1000/- bags. Each of the above varieties of coins are probably from a different die used in part of the production.

A high error rate signifies poor quality control or problems of striking a large coin in Steel. Looking through about 3000 Mint Cupro-Nickel Two rupee coins of same type and year 2004, I found just one Clashed die coin, and none of the errors seen of this new issue.

Double Cracked Die Coin

DenominationTwo Rupee
AlloyNickel plated Steel
Diameter28.5 mm
Thickness1.5 mm
Weight7.0 gms
Note Die cracks at
5 O'clock (5 in 2005) and
8 O'clock (middle Tamil character)
and also the regions where part of the emblem and lettering have erased with a weak strike.
SriLanka_r02_obverse SriLanka_r02_reverse

If one double cracked die error coin was found among just 100 coins, it is certain that far more spectacular errors will probably be found in this new series.


Coins with wide Unpolished annulus

DenominationTwo Rupee
AlloyNickel plated Steel
Diameter28.5 mm
Thickness1.5 mm
Weight7.0 gms
Wide unpolished annulus around periphery on both sides. The identical stain on all six coins indicate it is associated with a bad die rather than bad plating.
SriLanka_r02_obverse SriLanka_r02_reverse


SriLanka_r02_reverse SriLanka_r02_reverse
Position and size of Incuse region marked in Blue Crud from diepit at 11 O'Clock. Upper right of Sinhala Sri

Looking through 100 one rupee coins obtained at same time, I found that about half of them showed a clashed emblem circles on the reverse of the coin. The 100 50 cent coins had a few coins showing different stages of a faint 1 mm die crack from the lower left conner of the emblem to the edge. The 100 25-cent coins had one from a pitted die.

It appears that in order to mint coins at the least possible cost some of the quality control at the Royal Mint has been relaxed. You get for what you pay.

The error coins were scanned at 600 dpi and the images are displayed in reverse video at 300 dpi.