Hello, I have what a believe is a 17cm K 18 in MrsLaf case, it's made of brass and the head reads: P C/95 (12 O'Clock) small eagle but hardly visible (3 O'Clock) 1939 (6 O'Clock) and I (9 O'Clock). I am not sure this case was cut down, the diameter at the mouth is approx 174-175 mm and the total length approx. 410mm. Can someone help me? Thank you.