The Model IV was no more than a stage in development of Menz’s last design. The P&B Special was much the same as the Model III, but its enlarged trigger guard allowed range of movement needed in a double-action trigger. The external hammer was retained, but a vertically-moving safety catch appeared on the end of the slide. This was used instead of the usual rocking arm. The slide was marked WAFFENFABRIK AUGUST MENZ SUHL MOD P&B SPECIAL and the grips bore SPECIAL.