This is what we call a medium specimen Ammonite because they are approximately 4 to 5 inches (100 mmm to 125 mm). However, relatively tiny in the world of Ammonites. The largest known species of ammonite is Parapuzosia seppenradensis . The largest specimen found is 1.8 metres in diameter. However, this was only a part complete specimen, full size the diameter could have been from 2.5 to 3.5 metres!
However, these are still ideal specimens for your collection, office display or man cave!