Hello Tudor,
Welcome to World of Coins. It will be difficult to come up with values, since the pictures are too small for identification. Also, I would advise starting a new thread for each medal. It would help to have metal and diameter of the coins and weight could also be useful.
The medals you show look modern to me, with the exception of the French 1720(?) medal. Everything depends on who you meet. Someone who is really interested in the subject of the medal will offer much more than a dealer who doesn't know if he can sell the medals.
Maybe you can start getting a good identification. You can make nice large pictures within the restrictions of the forum, or you can embed a picture from another web site. There is more information
here and
here.
Good luck,
Peter
