Need assistance - inherited shell collection

[emventer]

Good day

I recently inherited my grand fathers shell collection, and would like to catalogue it to be sold. What sort of information do I need to include when I catalogue it? The collection is quite extensive, with a few rare jews.

Also, would it be better to sell it as an entire collection, or to sell the shells individually?

Could anyone provide me with websites or forums where I can get further assistance if needed?

Thank you
EM Venter