This one is a rifle I have always 'felt' (just my opinion) is one of the earliest of the signed "John Moll" rifles. It's also on the KRA Lehigh disc.
Note the loop in the "M" and the different angle of the lettering in the signature, the added decorative details. Now that could jsut be a quirk, I don't know. Also the extremely fancy Moll rifle on the KRA 'best of show' disc seems to definitely be the same John Moll who signed this rifle (below). So are those two - the rifles on the discs - the old man anglicizing his name? Or are they his son, who should have been old enough to sign rifles right around the time the old man died in the early 1790s?
Now this one is a restock probably of the 1960s-1970s, and this barrel I would fairly confidently wager is the old man. I have seen one other rifle - also a restock, but a much older restock - with the exact same inlaid barrel signature. The holy grail will be the day one of these turns up in a non-molested rifle.