CactusJack- Try it. Unload a revolver, and slowly (double action, or single action,) stroke the trigger through.. The trigger will be to the rear, the hammer will fall.
Note the relationship between the trigger, and hammer, BEFORE you release pressure on the trigger..
Having not seen this referred to picture, I'm guessing it's in somebody's hand, with the trigger held rearward, and the hammer forward..A "just fired" condition..
Meplat-