I think the Dutch Mannlicher has too many models that even they can't keep track of them all. I think they decided there were 12. But then you have to add the Dutch East Indies into the mix which ordered their own and have their own variations. What is throwing me off is that groove under the barrel. Mine is buried and too difficult to get out and I neglected to photograph that part of the rifle. I'm assuming that is the non-existent cleaning rod channel.