it's very hard for me to tell these apart. probably the one on coins are correctly attributed..I'm really familiar with the
ebay seller, but I have seen their listings before.
long story short...use pish's link!
the fist section is "coin photos" go there first. if it isn't clear what you've got, go to the link on the same page called " read svoronos online"..it has lots of details on types.