BOTERO (Giovanni).
Relationi Universali di Giovanni Botero Benese. Diuiso in quattro parti. Arrichite di cose rare, e memorabili, e con l'ultima mano dell'Autore. ...
Botero’ text was re-edited for an edition published by the Giunti, in 1640. For this edition, they prepared a new set of maps, based on previous edition, but with a curious dotted engraved line added round the continents.
Reference: Burden, 258, describing the Americas map.