All of them available through the 1908 Sears catalog? (and of course, top break)
Whoops, the snubby in the lower left isn't a top break.
Box 'o "Saturday night Specials"?
I really like the one on the upper left- I took one like that apart when I was 10, and was going to reassemble it later. My mom found it and threw it away. It was her Dad's gun, given to her as a wedding present. (tells what he thought of my Dad....)