Cartridge listed in the 1900 RWS/Utendoerffer catalogue that had the ‘f’ type shoulder. (Dixon Ref. MB41)

MEASUREMENTS:
Bullet:         9.96mm                 Case Length:   41.26mm
Mouth:        10.45mm               Neck Length:   12.26mm
Neck:          10.84mm              Shoulder Length:  21.88mm
Shoulder:  12.80mm               Rim:    2.31mm
Base:         13.07mm
Rim:           14.88mm