Gents I just picked up my first matching 98. All the parts including screw heads are stamped with serial and waffenampt. I have several questions. There are some markings around the barrel and I wonder if any of you guys know what they mean.

The markings are as follows:
cxm354 4ob
These marks are about 1/2" infront of the front of the reciever and wrapped around the barrel. the wood on the right side covers up after the b.

There are also what appears to be a 1 and a scripted p h.

any help would be appreciated.