How would Joe Manton have done it?
I imagine he would have one of his many skilled blacksmiths forge it out pretty quick, then one of his filers finish it.
But, more seriously, When I first looked at your picture, I thought, That would be fairly simple to do- Then I looked at Rolf’s tutorial and had to rethink. The connections between the forward and rear extensions could easily be done by “faggot welding”, which is when a piece is simply bent back on itself and brought to welding heat and hammered together. However, this would have to be done at exactly the right distance between the two welds. This is not without it’s problems.
Then, if a “tab” or tennon for the front or rear extension had to be included in this forging, that would complicate things. Also,it would be very difficult to hold the whole thing in order to file the shape onto the front extension because the bow projects forward and would prevent access to the finial. It would certainly be easier without the tab.
Does it attach with a screw or a tab? I suppose it would be a lot easier to braze the tab on.
I have forged guards for Tennessee type rifles, but never thought about a fancy one for a pistol.
Intriguing for sure.