Bollettino meteorologico ed astronomico del Regio Osservatorio dell'Università di Torino, 1873 (vol. 8)
A meteorological and astronomical bulletin issued by the Royal Observatory of the University of Turin in 1873, a scientific periodical compiled by the observatory staff for researchers and the wider scientific public. Its pictures are plain line charts of barometric, thermometric, vapour tension and relative humidity readings for January 1873, drawn on squared grid paper with hand-lettered Italian labels, offering a designer a clear model for dense data graphics and graph-paper layouts.
