Deux heures au Musee du Louvre (peinture) = Two hours at the Louvre (painting)
A 1912 pocket guide to the Louvre's painting galleries, issued in Paris by Commaille for visitors with only two hours to spend. The plates are schematic floor plans: numbered rectangles standing for individual paintings and wall panels, roman numerals and "Salle" labels for rooms, and dotted lines with arrowheads tracing a suggested walking route — useful as diagrammatic line art, wayfinding marks, and numbered-block patterns.
