19 cm Multi ammonite bed with Microderoceras and others, from Charmouth beach

A beautiful piece filled with Microderoceras, Promicroceras and Cymbites ammonites. Measuring 19 cm across it's widest part including the matrix. 
The edges of the piece have been polished to a high shine. 
 
No repairs or restoration, 
The piece originates from the popcorn stone.
 
Lower Sinemurian, Black Ven Mudstone Member, Charmouth Mudstone Formation, Charmouth, Dorset. 195 MYA