I have a 12guage Mauser side by side that I am trying to source some information on...

The barrels say Mauser built by Musgrave.

On top between the barrels it says JMMAN.MEFFERT, SUHL.
Underneath it says DOHLENER.
Then it also says R.Miller Cape Town, Sole agent, SA.

Any views or site recommendations?

Thanks,
W