Hello everyone,
I'm hoping for some help with identifying an old Chinese copper coin and getting a rough idea of its value. Here are the details I can provide:
Material: Copper
Weight: 125 g (approximately 4.41 oz)
Shape: Round with a distinctive square hole in the center
Outer diameter: 8.5 cm (approximately 3.35 inches)
Inner square hole side length: 2 cm (approximately 0.79 inches)
Condition: Wearing consistent with age; no cleaning or restoration done
Notes:
This coin is believed to be ancient Chinese, but I'm not confident about the era or minting details.
I would greatly appreciate any insights into its possible period, origin, and an approximate value range based on the measurements.
I would be grateful for any information, references, or comparables that might help me identify it and estimate its value.
Thanks in advance for your help!

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