I wouldn't worry too much about the knuckle knife.
They seem to have been made by more than one company in WW2.
Especially in the private purchase versions.
I don't think they all had the BC41 mark.
Pattern goes back to WW1.
No manufacturer's mark?
| Brian W Edginton|
Please don't attack me for what you read between the lines of my posts.
I didn't write it...you did.