Traité d'astronomie.
This is an early seventeenth-century astronomical treatise in French, attributed to Bernardo José Zaragoza y Vilanova, held in a manuscript reserve collection and likely compiled for astronomers and scholars. The three pictures are manuscript tables of numbers ruled in columns and rows, with handwritten headings, marginal notes and a few small diagrams of planetary positions, showing a dense, precise grid layout a designer could borrow for data tables, spreadsheets or archival typography.
