I had a Swinger when I was a kid...loved it! You'd pinch the little red bits on the knob and turn, and when it said "YES" you took the picture; then tug the film out, let it hang there, and then rip the covering off to reveal your picture...if you wanted it to stay, you had to take this little brush soaked in some sort of noxious chemical and swipe the front of the picture...still have a bunch of the old pictures I took with it, they've lasted through the years just fine. I remember that owner's manual! A true "pop" product of the 60's!