Cannon on a carriage, with calculations and a divided circle
Grain rations for 5,760 men, columns of figures, and a numbered semicircle scaled against its radius
A working sheet dominated by numerical calculations, with a pen sketch of a long bombard barrel mounted on a two-wheeled carriage at the upper left. A short note reckons that 384 staia of grain in 24 hours provide a day's rations for 5,760 men, and dense columns of figures spread across the page. Below, a semicircle is divided into numbered segments (rising and falling 3 to 31 and back to 1) set against a radius marked off in units 1 through 31, apparently tabulating a quantity along the arc. Faint further jottings are scattered over the sheet.
On this page
Bombard on a two-wheeled carriage
At the upper left a long gun barrel is drawn resting on a low wheeled carriage, its muzzle raised at an angle. The sketch is not described in the transcribed notes, which concern the numerical calculations elsewhere on the sheet.
Grain ration for 5,760 men
A single line reckons that 384 staia (measures of grain) supplied over 24 hours will cover a day's provision for 5,760 men. It reads as a provisioning estimate feeding the calculations that fill the page.
Semicircle scaled against a divided radius
A semicircle is marked with the numbered sequence 3, 9, 14, 20, 24, 27, 30, 31, 30, 29, 26, 22, 17, 12, 6, 1, while the radius is divided into 31 equal units numbered 1 to 31. The paired scales appear to tabulate a value as a function of position along the arc.