Barrel markings

Hi,
Asking all the Mauser experts...... what do barrel markings fcx CN/H mean?
Saw them on a gun for sale. Did not find any info in my Mauser book

Thanks

Are you able to give more details on the model, approximate year of manufacture and where it was made, please, which may be helpful to members?

They are on a german BCD 1944 Mauser.

The marks are on the barrel of a 1944 BCD german mauser.

I take it that the marks are defiantly on the barrel and not on the receiver near the barrel?