logo Museo Galileo - Institute and Museum of the History of Science
Egnazio Danti, Vsus et tractatio gnomonis magni, quem Bononia ipse in dive Petronii templo ex illustrium senatorum comitis Joannis Pepuli perpetui illius fabricae praesidis et collegarum autoritate confecit a.D. MDLXXVI mense Apr. ad amplissimum senatum Bononiensem
Egnazio Danti, Vsus et tractatio gnomonis magni, quem Bononia ipse in dive Petronii templo ex illustrium senatorum comitis Joannis Pepuli perpetui illius fabricae praesidis et collegarum autoritate confecit a.D. MDLXXVI mense Apr. ad amplissimum senatum Bononiensem

Bologna 1576?
2°, p. 1, ill.; 40,3x28,8 cm
Private collection

Extremely rare sheet published by the Medicean cosmographer to illustrate the functions of the gnomon of San Petronio in Bologna.