Looks beautiful. It’s written in a chinese calligraphy cursive script called grass script (草书). It references 津门 jinmen which has a few meanings in chinese. However I’d guess it to mean tianjin as jinmen was it’s old name (founded in the 1400s). As for the date of the bottle or artist that is not clear. Also grass script is difficult to read. I can make out some of the characters such as mountain scene, tea, water. I’d guess it’s a poem but I’m not able to find the poem. I’d guess the poem was written during the 1400s when that area was called jinmen. On the bottle looks to be written in simplified characters which means it would have been made after 1949. Again these are all my guesses. Good luck.