Could this piece be dated 1636? [Resolvido]

So, I acquired this coin recently. The last digit in the date is definitely a 6 but I'm very puzzled by the one preceeding it. It doesn't look like a 2 or a 4 to me in the slightest - instead, I (and some other people I asked) see a 3 there.  What is going on here? Is this a new discovery, a known variety or something else? I can post a few more angles if needed but this spot refuses to look a different way if you know what I mean.

This is my first time posting and I hope I'm doing it right.

Thanks in advance, TomekD

Welcome to Numista!

Please post a photo of the other side!

The large balls to the right and left of FRI SIA suggest it is the earlier type, and maybe 1606.  But the shape of the shield can also help.

 Yes, could be this 1606 page instead 

N#103236 [1604-1620] 

 Example of that date 

https://www.ma-shops.co.uk/sesambestcoins/item.php?id=58832&srsltid=AfmBOor_DbGtEuN4OAYZYzSJeKlxrvUGbN3lOAzR83nx3_EIMJUVF8TP 

 Also agreed about the shield shape 

 The third picture is from your link, but maybe the second coin is yours - 

with a different shield and those large dots either side of the obverse. 

Here's the other side as requested, sorry. I agree that it's likely the type mentioned above, I somehow missed it. Still, I'm having a hard time seeing the aforementioned digit as a 0 or a 1.

I agree it does not look very round as it should.

However, the presence of the “balls” left and right, and the shape of the shield argues strongly for 1606, perhaps with some damage to this numeral.

 I made this earlier 

Also on this coin, the punch used to make the 0 is not perfectly round:  https://www.acsearch.info/search.html?id=2237447

Indeed, this seems to be it. Had I originally known that this piece was minted in this date range, I'd've probably assumed this was a misshapen/damaged 0… although it's still tough for me to not see a 3 there. Thank you a lot!