Punch cards.
Having so much information and many pictures, we decided to build an index of shells to "punch cards". With a hole punch we have many sheets of cardboard along the edges and we have numbered all the holes starting from the top right and rotating clockwise.
We then wrote a "Manual" that lists the correspondence between holes and features conchiglie.ad as the number 1 is used to form the "globular", the number 2 to the form "cone", the number 18 for the striations "observed "the number 31 for the color" uniform ", etc. ..