Hello, I'm new on forum :) I ask you to help me date this bottle. It was found in the sea near to polish shoreline. I dont know much about glass, but it seems to be produced arround 1890-1910...
The Baltic Sea? It's a crude applied lip, but I can only guess about European flasks. I think your flask is probably late 1800s, a little earlier than this American flask.
Thank You for answer! You are probably right- I found few items from late XIX century together with this flask. The way it was made also fits to Your example.