the bayonet S/155G with plastic grips must be a refurbishment, possible it was a replacement scabbard?.b.r.Andy
Scabbards which are maker/date marked but without serial number are encountered with some frequency by several makers and during almost every year of production. It is not exclusive to 1941 Paul Weyersberg (crs41) by any means.
For sure but I never seen for J.Sch in 1938. R.Aws