My entry in the Weird Revolver Category is this Savage North Navy percussion revolver.
To fire it you first pulled the lower trigger, the one with the ring, with your middle finger. This cocked the hammer and rotated the cylinder. Then you pulled the upper trigger with your regular trigger finger to fire it.
View attachment 935064
Not really all that weird, but certainly unusual were the Merwin Hulbert revolvers. This one is a Pocket Army, chambered for 44-40. Don't let the term 'Pocket' fool you, these revolvers were just as big as a Colt.
View attachment 935065
To empty it you pushed the knob in front of the trigger guard back, grabbed the barrel and cylinder, rotated them 90 degrees and pulled them forward. The empties were supposed to all fall out, but sometimes a couple needed to be flicked out with a finger.
View attachment 935066
View attachment 935067
To disassemble the barrel and cylinder you pushed the lever on the side of the barrel in and pulled the barrel and cylinder off.
View attachment 935068
View attachment 935069
Merwin Hulberts could not be reloaded while open, they had to be closed up and reloaded through a side gate, not much different than a Colt.
View attachment 935070
Merwin Hulberts came in many sizes and variations. This one is a double action, five shot 38. Notice the folding hammer spur.
View attachment 935071
They worked the same as the bigger ones.
View attachment 935072
View attachment 935073