Bollettino dell'Osservatorio della Regia Università di Torino, 1875 (vol. 10)
This is a meteorological bulletin from the Royal University of Turin's observatory, issued in 1875 by the Osservatorio astronomico di Torino for a scientific readership. Its pictures are hand-ruled grid charts of monthly weather observations, with four stacked traces for barometric pressure, temperature, vapour tension and relative humidity plotted across each day of the month. A designer might take their dense graph-paper grids, fine black trace lines and spare Italian sans-serif labels as a model for data-driven minimal layouts.
