Each blank is one-of-a-kind   
Raw brass flat blank to create your own metal set jewelry. 
Patina is on both sides of the blank.
Metal - raw brass
Size - 40x20 mm /1.6"-0.8"
Quantity - min 4 earring semi-circle artisan charms with 2 holes.
I made the photo on my workbench on my mobile phone. So, you can see the real colors of the patina!
The colors of the patina are natural, and in all processes, no harsh chemicals are used.  
A thin layer of lacquer covers the brass/copper sheet to save the natural color of the patina.