For sale is a grouping of very small shells. As can be seen in the photos, there are two kinds; the rounder shells average about 8 millimeters wide and the longer ones average about 12 millimeters long but there is considerable fluctuation both upwards and downwards. There are 10 of the rounder shells and 14 of the longer ones. I've photographed the shells with the center 3 on a penny just to give you some perspective on how small they are!
Please see photos for condition and don't hesitate to ask questions. Thanks for looking!