Yes, actually the crowned acceptance marking is a Crowned/"Z"
Normally as smithy suggests there is usually a Royal cypher with the date of acceptance along the back spine near the crosspiece/hilt, usually a Prussian cypher (Crowned/W/date of acceptance) but occasionally Imperial bayonets will sport Bavarian or Saxon cyphers...

If you find you have a hankering for Imperial bayonets, Anthony Carter did a fine series on most variations, and Bruce Karem did an extraordinary job on your variation (the type II up through the Weimar versions that led to the type III) undoubtedly the best author on the subject and I hope he decides to do his part II that covers WWII, kind of doubt it anytime soon though.