Vizier van de jacobsstaf uit het wrak van de Oost-Indiëvaarder Hollandia

Navigation, cross staffs' vizor; consisting of 2 parallel strips, flat, straight, with one curved end, joined by a semicircular strip with straight bevelled rim, rectangular opening between strips, outer rims of both strips right-angled in the shape of triangular pointed lugs.

Vizier van de jacobsstaf uit het wrak van de Oost-Indiëvaarder Hollandia

Navigation, cross staffs' vizor; consisting of 2 parallel strips, flat, straight, with one curved end, joined by a semicircular strip with straight bevelled rim, rectangular opening between strips, outer rims of both strips right-angled in the shape of triangular pointed lugs.