File:Opus de natura caelestium spirituum quos angelos vocamus.png

Opening page of Opus de natura caelestium spirituum quos angelos vocamus by Juraj Dragišić, an incunabulum printed in 1499 in Florence. This copy from Dubrovnik Libraries.

Source: https://www.researchgate.net/figure/Scanned-front-page-of-the-incunabula-Opus-de-natura-caelestium-spirituum-quos-angelos_fig1_378060002/actions

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