(from PW18 tracking)
"balle" should be tagged <ms> if used to indicate cannon proportions
See
p017r_1 | p017r-p019r | Du canonier p5 | On the gunner p5 -- | -- | -- | --
Search term: "balles" in TXM to create list of instances, then decided which ones to should be tagged as measurement, and made changes in oxygen (by searching again for RE "balles" to navigate to the relevant entries).
I tagged expansively, e.g.
the <ms>thickness of four balls at the breech and two in front</ms>