Both the original matrix and the orthoceras have been polished to display this grouping of seventeen or so fossils. It displays well either wall hung or on a display stand on a window cill. Orthoceras are some 350 to 400 million years old and come from the Silurian Age. They are the earliest recognisable animals and are ancestors to our modern day squid. There is some minor repair to the plate, which certainly does not detract from its overall presence.