I think that some of the information that was posted in the old forum should be posted here too, in order to store some of the most important information*, and also because some new swappers who may come to the forum will find it useful. (And also, the "old" forum members will be pleased to have the information at hand).
I will post the important information in a single post (instead of multiple posts), as I think it is better. (If not, administrators may change it I suppose). Please, note that I "missed" some posts with no information (such as messages containing just "Oh! Thanks for this info" or "thanx for sharing" or the like).
*To be honest: the information that I think is important and/or relevant for this purpose.
Types A and B of the coins. (Original message from euro_space in the old forum)
euro_space wrote:Hi @all
now i do not find the topic where an euroswapper ask
the Type A and B difference
Due to the process of inscribing the edge, two "types" occur.
have the Type B when the coins are in reverse during the minting
for more info look on Wikipedia
My own note: I provide here the direct link to "edges of the 2€ coins" part of the article in wikipedia: http://en.wikipedia.org/wiki/2_euro_coins#Edges
Mathias wrote:An other nice picture from the internet you can use if there are only stars and 2 (like on Belgian coins):
It's from here: http://www.kolumbus.fi/geodun/eurovariantit.htm