Sawyers Mill IV is a rare camera that was only made for 1 year. It was also sold under the name "Primo Jr. I bought this one from a person, it creates 4x4 images and uses 127mm film which isn't created anymore but you can find sold on eBay, Etsy, antique shops and some places you still find it where its made. I bought this from a gentleman who used this camera but I just bought it as a collector item and never actually used it so only can see as-is but have been told it works.