Numbers under sight of DWMs

[alvin]

Originally Posted by Kitkat041836

I have a 1917 artillery serial #852.It has a fine tuned sight front and rear.The front sight has the last two numbers 52 on it.The rear sight base has 52 in the top left corner and 84 in
the lower right corner.Under the sight base are the nunbers
8452. The bottom of the barrel also has the numbers 852.
Hope this helps anwser your question.
Yours Kitkat041836

Sound like 52 controls installation fitting of the sight leaf on the barrel, and 84 controls the matching of the leaf notch position and sight ramp elevation.

Make any sense?

Please also note the year. 1916 as mentioned by Thor, and 1917s as mentioned by you guys. If above makes a little sense, it was an improvement -- in my imagination, two seperate matchings was more productive than single matching.