This is an authentic Japanese Tetsubin, cast-iron tea kettle pot with bronze lid from Taisho period (1910's-1920's).
Tetsubin comes with a pouring spout, a lid and handle crossing over the top, used for boiling hot water for drinkng purpose, such as for making green tea.
It has beautiful details.
https://www.youtube.com/watch?v=wPcZ-Z7xInQ (how to care)
https://www.youtube.com/watch?v=MKVuc_CY1ig&t=126s (how to clean)