It's chinese. A "cash coin". Their dates stopped after the 1910's. But can go back as far as the 1600's. And when/if you eventually get a date: They go in dynasties that could last for 40 to 70 years or whatever. And even if you get one into the 1600 or 1700's, it doesn't mean it was lost back then. Because they were apparently stored in barrels and vaults and not brought out for up to 100's of years later. They're also not worth anything. But they're a fun age indicator of an era no later than the 1920s.
As Mackaydon already said, it is a Jia Qing Tong Bao 1 cash coin of the mentioned date. The inscription reads 嘉慶通寶 and means "currency of Jia Qing" The ornamental writing on the back is Manchurian because the Qing dynasty, which this emperor belonged to originally came from Manchuria where a form of writing was used that was different from the more well known Han-Characters.