Medieval coin [resuelto]

billon I think, 1.8cm-18mm across ,0.7mm in width. Has a seashell under the cross. The other side is to far gone

Possibly the letters …BERG leading up to the shell?

N#55126

I think this

I'm not sure I am seeing the seashell reverse  nor matching lettering??

Sorry. I meant that the coin linked by TheHistoryNerd does not match the lettering or the shell on your coin.

Oh, sorry 

I think you have a French coin, possibly a liard, of Charles VIII, struck at the Dijon mint, like this one:  https://www.acsearch.info/search.html?id=1525858

If you rotate your second photo 180 degrees, you have the shell (Dijon mint mark at this time) at the top.  To the right we can see SI …  At the end we can seen BEnE, which fits with the expected lettering (I had guessed BERG earlier).

If you rotate your first photo 90 degrees COUNTERclockwise, you will also see a shell at the top, and the letters KA for KAROLVS.

I'm not sure why there are no symbols in the corners of the cross.  Maybe it is a slightly different type, but I think this is very close.

There is s very small crescent in one quarter.