Set of small skulls in copper alloys on an oak base

  
Set of small skulls made of copper alloys on an oak board. The small skulls are created using an oil sand mold. They are made from five different copper alloys. From left to right in the first image: Aluminum bronze (copper aluminum), maillechort (copper, zinc, nickel), copper, bronze (copper tin), and brass (copper zinc). I am selling this set of skulls that I made for 150 euros.