It fits good as a
side plate for the SLP, but not the 56 LLP. It's screw location is similar to the '56 LLP but not the SLP
'56 LLP with a little hint of the earlier "banana" shape. Note how only 1 screw is to the rear of the cock, and how the plate extends forward past the frizzen spring....
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Here is the SLP lock, that really is straight, with two screws quite visible to the rear of the cock, and the forward screw hole in front of frizzen spring...
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And here is the Pedersoli lock...a little of this...a little of that..... is the frizzen spring long or is the plate too short? both?
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The problem is the SLP that Pedersoli chose to copy wasn't really a "standard" SLP (if one can use the term "standard" for the Bess, ever) The gun Pedersoli used was probably a British militia musket, misidentified in the 1960's as a typical SLP. Which would explain the 1756-ish dated lock plate, on the shorter musket with a flat sideplate opposite the lock, as well as the missing ramrod thimble. It's a better explanation than it being some "early run" of the SLP.
LD