Are those square things "coins"?

Ok, I admit those maybe aren't even coins.

I bought a lot of coins and got those two weird square things, there were roman and ancient coins together, so I guess they are supposed to be some kind of coin.

I searched google and got words like "sangam age" but nothing with weights or measurements.

So my question is:

Does it look like ancient coins? From where?
Of course I am not looking for a full ID, but just some opinions if they look like something worth keeping.

First: 1,5g 11mm x 13mm
Second: 2,2g 12mm x 14mm
Probably copper

Thank you for any comment.
Geison

Without detail it's pretty hard to say exactly what they are, but likely from one of the Indian states, they have quite a few of those unusual shaped coins

https://en.numista.com/catalogue/index.php?mode=avance&p=1&r=&e=inde_princiers&d=&ca=3&no=&i=&v=&m=&a=&t=&dg=&w=&g=&f=square&c=&co=y&cno=y&cc=y&cn=y&cj=y&ce=y&cu=y&cat=y

some indian cois were cut of a square bar....