Cut Dactylioceras ammonite for polishing. Fossil has been wetted to show features. Lovely creamy coloured calcite. 70mm diameter ammonite. Also a smaller ammonite on the back which you might be able to prep out. 

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Fossil Polishing Kit available here (including wet-and-dry paper in various grits, felt wheels and tin oxide polishing powder - designed for home use with very basic kit).