Germany / mid 20th century
Charvoz S-801 Bow Compass and Divider
Charvoz S-801 Bow Compass and Divider
The Smithsonian catalogs Charvoz S-801 Bow Compass and Divider as bow compass in its Mathematics records.
WHY IT’S INTERESTING
This metal instrument has a handle with vertical ridges above a ring. Unlike almost all of the other bow compasses in the collection, the bow screw has tips on each end. A thumb screw on the leg with the pencil point allows for fine adjustments of the angle at which the instrument is set. Screws near the points and on the front and back of the instrument adjust the length of the needle and pencil