Unknown 1700s-1800s indonesian coins. [opgelost]

Please,can you help me identify these two?

Palembang 

You can identify here:

http://www.fsrcoin.com/palembang.html

Geison

Palembang 

 

You can identify here:

http://www.fsrcoin.com/palembang.html

Thank you,ill look. Why did they feel the need to make hundreds of coins that all look the same.

Carol51

Geison

Palembang 

 

You can identify here:

http://www.fsrcoin.com/palembang.html

Thank you,ill look. Why did they feel the need to make hundreds of coins that all look the same.

The United States made trillions of Lincoln cents that look all the same. But die making has improved so there are fewer types.