SA or NSDAP Leaders Belt and Buckle

German WWII or Pre-war belt and buckle set.  This style is for SA or NSDAP leaders.  Medium Brown leather belt is in very good condition and show normal use.  Comes with the small leather keeper strap.  Belt is marked on the buckle end and is hard to see due to normal wear.  I can make out RZM circle and Kernstuck I believe the last numbers I can see are /40 the rest is harder to see but is there.    Buckle is Silver pebbled with rounded edges and is RZM marked M5/140.  It's still soft and measures 41 inches end to end.