I bought coins lot...

I've got this lot for exactly 27$...
How much its exactly worth ?

There are few good looking coins for example :
Franz Josef forint ...13g?
20 dinara 1936 ...10 dinara 1931.... and many more..

Probably double.

Citeer: "kommodore"​Probably double.

​I honestly doubt even double.

Many of the older coins are holed or mounted, which takes out a significant chunk of their appeal and value for most.

Most of the holed ones are from the Ottoman empire ; it's "normal" for this type of coinage so they still have some values.
There is, however, another coin with a hole inside (I didn't identify it, the picture is a bit too blurry) and two yugoslavian coins that are indeed mounted.

The two chained coins from the right side might be a little rarer than the rest.

Citeer: "kommodore"​The two chained coins from the right side might be a little rarer than the rest.

​that means its worth more than scrap silver because its holed/made as jewellery

These kind of coins in that state can be bought for about €6 per kilo here in Belgium.....