If you live in the euro area, you are likely to use "his creations" every day: Luc Luycx designed our circulation coins - the common sides, that is. However, what Luycx originally made looked a little different.
In a recent article in its "My Job: Europe" series, Deutsche Welle portrayed the artist and also showed a photo of the plaster model. It already looks pretty much like a normal €2 coin, except ... Do you see that round blob south of the Iberian pensinsula?
That was supposed to be a latent image - an extra security feature that is used on coins from several countries. (Early designs of the German bimetallic pieces also had one on the country-specific sides.) Well, the latent image below the map was ultimately not used. Luc Luycx had to make some more changes - for example, the Canary Islands had to be added. Good thing the "blob" was gone, so there was some space - even though that is not exactly the geographic position of the islands vis à vis mainland Europe.
Also, the 2 indicating the face value was somewhat bigger in his design. On the coins it barely "touches" the ring, but it still is very dominant - just what Luycx wanted. Other changes affected the cent coins: Initially the font sizes for the two lines, EURO and CENT, were the same. However, in order to indicate that the name of the small unit is actually cent, not "eurocent", the second line was made larger, with an even bigger C.
Then, in 2007, the map on the 10 cent to 2 euro coins was modified again. Now it shows most of geographical Europe regardless of whether a country is an EU member or not. For Cyprus the same trick as for the Canary Islands was used - the island was "moved" a little.
And if Luc Luycx owned all the euro and cent circulation coins that have his "LL" initials, he would be a rich man now.

About 85 billion coins circulate in the euro area ...
Below are an "old" (1999-2006) and a "new" (2007-today) €2 coin and, attached, Luycx's original design.
Christian
