This is an old coin from Japan

[debodun]

The 100 mon coin measures 50mm (2 inches) long and it heavy for a coin. I wouldn't want to walk around with a pocket full of them.

 

[Dr. Jekyll]

You probably would not have walked around with a pocket full. One of the reasons coins with holes developed was so that they could be hung on strings and carried around that way, or hung from pack animals etc. (Source, family members who lived in Japan for many years. We have a bunch of these kinds of coins littered throughout drawers, boxes, and all the places where that kind of stuff accumulates.)

 

[Pinky]

Mom used to have a wicker sewing basket with old coins like that attached to the lid. We removed and played
with them, but didn't save any. I don't think they're worth much, if anything.

 

[debodun]

I also came across this 1868 coin depicting Pope Pius IX issued by the Vatican (actually known as the Papal State back then). It's a large, heavy coin.

 

[debodun]

This also looks like it's Japanese, but on the reverse, there are figures that look like they're embracing and I don't think they're Sumo wrestling. I posted it on a coin indentification site and someone suggested it was a brothel token! New one on me.

 

[debodun]

I received another reply to my inquiry at the coin ID page:

Chinese marriage charm. Inscription top to bottom, right to left:’ Wind, flowers, snow & rain’. On the reverse: a ‘ how to’.
The inscription might refer to different goddesses, and might be oblique references to different poems and/or romantic stories of the past.