In The 19th Century Spam Came Straight To Your Mailbox...
In the early days of companies trying to sell us s... ...in town likely to be interested in the product. Dick Sheaff posted an interesting historical article on Ephem...
https://www.neatorama.com/2016/02/29/In-The-19th-Century-Spam-Came-Straight-To-Your-Mailbox/
