It’s not easy to access them for digitalisation. The museum which holds them, have to get them out of storage for you which involves a curator and his time. Als

It’s not easy to access them for digitalisation. The museum which holds them, have to get them out of storage for you which involves a curator and his time. Also afaik many aren’t labelled extensive making it difficult to choose the ones you are looking for. When your estimation is accurate, then there are likely hundred thousand fragments in simple labelled boxes, laying around in storages. To digitalise them would require a lot of money, the agreement of the museums and personnel.