Jurassic Fossil Ammonite Polished Cabochon Promicroceras Marstonense

Ammonite cabochon  sp Promicroceras Marstonense . Polished on both sides.Also known as Marston Magna  marble, as quarried previously for it as decorative marble.Supplied with a small laminated card and in a gold coloured organza gift bag.
Date: Jurassic , Sinemurian
Provenance: Yeovil, Somerset
Size 42 x 28 depth 0.4 mm  8 gm 
Condition: There is good clear detail. code 9986