Arch by Master GA with the Caltrop, from "Speculum Romanae Magnificentiae"Monogrammist G.A. with the Caltrop · 16th century

Arch by Master GA with the Caltrop, from "Speculum Romanae Magnificentiae"

EngravingThe Metropolitan Museum of Art · CC0 1.0Lindy Arts

Arch by Master GA with the Caltrop, from "Speculum Romanae Magnificentiae"

Monogrammist G.A. with the Caltrop · 16th century

Arch by Master GA with the Caltrop, from "Speculum Romanae Magnificentiae"

Engraving

The Metropolitan Museum of Art · CC0 1.0