I agree with John regarding including a profile of the cartridge, as this gives a better indication of the shape of the head and the rim that the photo or scan of just the head would not show.
Between trying to get some chores completed around the house this weekend and watching over the grand daughter, I hope to get pictures posted of 15 to 20 identified unheadstamped cartridges from my box collection. I’m not sure if I understand what you are suggesting with this; is the plan to start a new thread with each identified cartridge, or to put them on this thread, one cartridge per post?
Also, if the data base of identified cartridges is going to be useful, we need to ensure that the pictures are uploaded to a site where they will not be deleted at some point, as often occurs with the pictures here. Otherwise, our efforts will be pointless. I would be willing to consider putting them in a directory on my web page, unless someone has a better idea.