Don't forget as well there are locks which have the shape of a bar action but internally are back actions. As I recall the American
L C Smith & Baker both fit this category. Also I have a VL&D Knock-About built by J P Sauer which fits this category as well as a Birmingham built J P Clabrough. There are others but these are the ones I am most familiar with as have owned all at some point in time. Currently have one of each except the Elsie.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra