Hello and welcome.

There are so many fake Chinese dollars around, it's always best to assume it's fake, until proven otherwise.
A quick test: does it stick to a magnet? If it does, then it's a steel fake.
"Where it came from" is another key indication. If it didn't come from a reputable coin dealer (who would have charged you a couple thousand dollars for it), or an expert collector in Chinese coins (who would likewise have asked for over a thousand dollars for it), or someone who can prove their ancestors acquired it in China in 1900, then the assumption would be that it's fake.
If you bought it from a tourist trap in China, or from a street market in Chinatown in your typical Western city, then it's definitely fake.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis