Very pretty Desmoceras ammonites showing calcite chambers.  Hand carved into a solid piece of oak to stand upright but can be removed and handled.  Nice display that would look good on any desk or shelf.
Unusual, different.
 
Approximate size base
20 cm wide
3.5 cm high
9.5 cm deep
 
Approximate ammonite size each 
7 cm
 
Total height of display 9.5cm