15 inch naval gun barrel at the Coventry Ordinance Works, September 1917. You can see the interrupted thread pattern of the Welin-type breech block, which allows a breech to be opened and closed much quicker as the threads can be engaged without a full turn.
I know a guy that can do it cheaper!
They’re Grandmothers today, but in the 1970’s, they were our HS Sweethearts, and the reason I couldn’t concentrate in School.
At our school the hem line had to come down to at least the tip of their thumbs when standing straight. Now stand up, and hold your hands at your side. See where your thumb is. That was the skirt length of most girls at my school.
No tattos, no piercings, no green hair.
