M 1927, 28 SK, 28-30 SK, M39. s# 22021 on tang. Very nice concave blade with maker’s name; FISKARS on ricasso. No oil hole in pommel. Bright pommel and cross guard. MRD 16.7 mm. More rounded cross guard. Very nice wooden grips riveted to the tang. Very nice dark ribbed metal scabbard with oval frog stud. This is the hard to find first M 1927 model.