December competition 2010!

[izotz]

Thank you very much again, Andyg. As I said, I love this kind of things.

I must admit I took a lot of time with #10, so I had to do some research. I had no idea when I saw it. Some other, either I knew them, or had some clue, or I was quite lucky (luck comes easier when you realise you deal with bimetallics ).

... and a special congratulations for Gerhard, who managed to get the right set of answers in, even before the competition started !! 

I thought it was just me that I saw something strange on the dates 

As I am the 3rd, I have the privilege that I will not make the extra effort to choose one coin out of three. 

[andyg]

I posted the competition Dec 19th at 10.47 GMT.
At December 19th 11.15 GMT I had Gerhard's answers
To say I was impressed is maybe an understatement.