Coffee With a Codex: Military Fortifications (Ms. Codex 1643)

Coffee With A Codex is an informal lunch or coffee time to meet virtually with Kislak curators and talk about one of the manuscripts from Penn's collections. Each week we'll feature a different manuscript and the expertise of one of our curators. We meet over Zoom and everyone is welcome to attend.
On June 13, curator Dot Porter brought out Ms. Codex 1634, plans of fortifications for use at the royal academy of artillery and fortification founded in Turin in 1678, consisting entirely of figures of plans and elevations, some with landscape elements added in the background. Written in Turin, 1759.
Ms. Codex 1634 on Franklin (link to digital facsimile): franklin.libra...
More about Coffee With A Codex, including the schedule for upcoming events and links to register: www.library.up...
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[@giwingnut8856]

It appears to me when the drawings of fortress layout, in reference to the letters around the perimeter, the link is likely to be modules earlier in the book. Like pieces of a Triomino game, to expedite the design and build period, especially helpful during tense times. You could possibly draw a parallel to designs for Lego builds.
Being a Veteran, with training in Rapid Mobility, that is how I see that Codex. Really happy that you shared it.