This woodblock, crafted by Christoffel Jegher in 1652, features the printer’s mark of the Plantin Press (Officina Plantiniana).
The design includes a compass held by a hand emerging from a cloud, flanked by Hercules symbolising labour (Labor) and a female figure representing constancy (Constantia). It served as a hallmark of the prestigious Antwerp printing house and was used in notable publications such as editions of the Breviarium Romanum. The block exemplifies the artistry and symbolism integral to early modern book production.