Hello and with respect I received few days ago this ring from a friend for my collection and I don't know if it is polish or not. who wear this kind of ring and if it is WWI or WWII. Thank you in advance.

An internet search of world silver hallmarks may be helpful in identifying the stamps. Here is one I consult from time to time:
Polish silver hallmarks

I think this is modern ring

Good site Mike,,one that everyone should have bookmarked!.. As Evgeniy mentions this is modernish! 1986 and newer. From Gdansk... Hallmarks are always a big 'tell'.. A nice small book, small enough to be able to bring to a show I can recommend is 'Tardys' book on silver hallmarks. Show almost all wartime silver hallmarks, codes etc. Still in print and can sometimes be bought inexpensively 2nd hand...