Unknown Coin - 1600s

Maybe 169? On bottom
Diameter ~23mm
Weight 2.5g


any help would be much appreciated

Hmm, so this is totally out of my area of interest, so forgive the stupid question but,
How can you be sure that's actually a coin?

Citeer: "Kopeika"​Hmm, so this is totally out of my area of interest, so forgive the stupid question but,
​How can you be sure that's actually a coin?

​I can’t be . It came from a purchase of coins so I took the assumption.
It could be a button for all I know

... or maybe a cap from an ancient nail?

https://en.numista.com/catalogue/pieces38557.html
That would be my guess.
One side a date with a line under it, and a line on the other side.
Size and metal also alright.

Awesome example of pattern recognition!

Except the pattern is all wrong. The numbers are much smaller relative to the diameter in 2 Maravedis, and the imprint looks nothing like lion shield. But now I can see where the supposed digits are on this thing. I guess maybe it's a coin after all.

Citeer: "ZacUK"​https://en.numista.com/catalogue/pieces38557.html
​ That would be my guess.
​One side a date with a line under it, and a line on the other side.
​Size and metal also alright.

​thank you. I think the orientation of the date is different but there might a variation?

Citeer: "Kopeika"​Except the pattern is all wrong. The numbers are much smaller relative to the diameter in 2 Maravedis, and the imprint looks nothing like lion shield.

​The link gives us one photo. But it gives additional important information: the coin was struck at 11 different mints.

That's eleven opportunities for different sized numbers and other variations.

But at that point, how do we know that it's even this coin, and not a completely different one from a different country? You can barely make out any devices on it. Did only this country make coins of this size in 1600s?