I think this question speaks to one of the essential aspects of the data. In my interaction with the datasheet, I mostly focused on the absence of the data, but I think I have missed out on this key puzzle piece to the big picture of why the data is not there. I assumed what was responsible for the non-existence of the information without pondering on possible answers to this one key question. It is indeed crucial to look into the current condition of the item or/and collections including the item. If the artwork is not as much preserved as others, it can mean that more efforts need to be done to save it from lacking more data in the future.