1) Create a thread about historic imagery
2) Gather all the material in the first message in an alphabetical or whateveretical categorization, so that people interested will know how to browse.
3) Put the images in spoilers with relevant tags
4) Update the thread every time you add a new material, stating the content in the message
With all due respect, this is not your personal area where you can dump every **** you come by and people coming to check the board most definitely don't have to be welcomed to a cemetery of 0-1 reply topics of crappy drawings. It is ugly, it is disrespectful and it is no way convenient for browsing even to a person who is interested in them as they just keep piling on each other and it is impossible to know what has been shared in which page under what tag.