12 cm Septarian ammonite bed with Promicroceras and others, from Charmouth beach

A uncommon Septarian cell measuring 12 cm across, including the matrix. Filled with Xipheroceras, Promicroceras and Cymbites ammonites - the piece is semi translucent. 
 
 
No repairs or restoration, 
The piece originates from the Stellare Septarian nodule bed. 
 
Lower Sinemurian, Black Ven Mudstone Member, Charmouth Mudstone Formation, Charmouth, Dorset. 195 MYA