Strange even the "Dienste" word, some letters are not same font probably, not typical D and S. the frog is certainly from S84/98 as visible on front area, there was larger hook of scabbard, so certainly not correct here. Question is the trodell for extra KS98 bayonet or for combat bayonet. With this dedication it should be presentation piece, or gift, strange too the red buffer, not typical on bayonets. With brown backside and alu rivets, i assume the frog is a early period 1937-9.