Astrolabij quo primi mobilis motus deprehenduntur canones (1512)
Robertus, Anglicus, active 1326 · Instrumentum Astrolabij etiam impressum est Venetijs : In officina Petri Liechtenstein Coloniẽsis Germani · leaf 58
abalterosnguloruad latus oppo litum oncas perpendicularem qua oucjb in rotum latus illud fuper quo fteterit 7 babetur propofitum cupiendo medietatem producti vt patet in figura. Qei operare vt pri us oe vno quoqj illorum Duorum triangulorum per foperms oicta. ‘^bropofitio fcprinu. fijupcificics…
Astrolabes
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
