On selfstanding matrix !

Name : Graphoceras concavum
Age: Jurassique, Aalénien
Provenance : Geisingen , Allemagne

The ammonite has a size of 13.9 cm and is onto it's natural stone that has been cut to act as a stand.
Back side is not in so good condition.

Highness as pictured 16.5 cm
Diameter of the ammonite : 13.9 cm