Raimey, a careful examination of the barrel marks suggests no initials stamped from anyone. Now, they may have showed at one point but there is nothing there now.

It is an HAL over pistols gun, that mark is reasonably visible on both barrels. The proof crown over V is so faint that the V is barely visible as a V (more like a single oblique line) and the crown is long gone. No initial of any mechanic is visible. And while the flats are stamped with the serial number, ahead of the flats the barrels have their own number......632 stamped.

The world cries out for such: he is needed & needed badly- the man who can carry a message to Garcia