If you look at these pics of my 1894 A grade made in 1903 and the two that will follow you will see a JP (combined as one letter)on each barrel just in the front of the lower level small flats that also have what looks like a + and a - and small initials capital W.H. LA is on each barrel but no slash marks.
There is also a 6 with a small 12 postscript on the right barrel next to the hook. This is close to the weight of this 12g. gun.
Also there is a 3 and a 1 on the left side of the bottom of the lump and on the right side is a number that has an "X" through it followed by a half an "X" which is probably just struck half off the flat of the lump.
Boy, this is getting interesting. I wish I knew what some of these mean.
