Except for a couple errors, the Pedersoli is a relatively close copy of the first type Short Land, New Pattern (often called 2nd model). Granted the screws are probably metric and things like that, the musket is fairly accurate with the proper styled and shaped lock and stock. The two obvious faults are the "ears" at the rear of the lock and side-lock panels which had become mere projections by that time and the mismarked lock. The Ordnance Board had mandated locks be marked "Tower" and not the makers name prior to the beginning of the manufacture of the model. It probably wouldn't have been possible to back-fit a maker's marked lock since they would have been more "banana" shaped, being late Long Land Pattern production. This could be changed and be fairly correct since the lock has the correct engraving on lock face and frizzen front, single screw through behind the hammer for sear, tip on top of frizzen arm above frizzen spring bolt, correct type hammer with proper flint cap styling and flat lock bottom. Another minor touch would be to lower the height of the tang surround, originals didn't stand as tall as the modern copies. A little rework would make the gun a descent copy of the guns produced up until about 1775 when some changes appeared in lock style and ramrod guides. Hope this helps.