Type C is the most common outlet used in Europe. It is sometimes called the "Europlug." It is not grounded and includes two rounded 0.157-inch pins. It is 250 volts and widely used in all of Europe.
The type C plug can be used in Type E, Type F, Type J, Type K and Type L outlets. It can also be forced to work with Type D and Type G sockets.
More confused than ever I checked the images from the search I found this:
|Type C Plug|