great i'm at my parents place about to go to bed and my mom drops a fun little puzzle in my lap i desperately want to get on but im so tireeeeddddd

She dug up these coins that my great grandmother seemed to have passed down the generations hoping it'd be worth something one day and every source online has either SUPER conflicting results or I'm simply not fine enough of an eye to slog through the counterfeits

for the morning, are any of yall numismatists? I feel like if any corner of the internet there might be a rando thats just SUPER into hundred-year-old chinese coins, it'd be this corner. in the meantime im going to bed