Model 1903 Smith & Wesson .32 Hand Ejector Lockwork - Shown at rest (L0 and with trigger pulled to rear (R). - SN 7611
With the trigger in the forward position, the rebound catch (on the bottom of the hammer) backs up against the stop which is machined into the
lower wall of the frame.
With the trigger pulled to the rear, the rebound catch just clears the stop machined into the lower wall of the frame.