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Unspecified / mid 20th century

Record Bow Compass

Record Bow Compass

The Smithsonian catalogs Record Bow Compass as compass, drawing in its Mathematics records.

WHY IT’S INTERESTING

This steel instrument has a pen point on one leg. Two screws adjust the width of the pen point and allow it to be removed. The needle point and its screw are missing from the other leg. A thumbscrew for adjusting the width of the instrument is outside the leg with the pen point. A cylindrical ridged handle is directly attached to a ring inserted into the legs. That leg is marked: R ECORD . The obj

SERENDIPITYA little unexpected
FamiliarWeird

A CLOSER LOOK

The Smithsonian lists the object under Mathematics and dates it mid 20th century.

This steel instrument has a pen point on one leg. Two screws adjust the width of the pen point and allow it to be removed. The needle point and its screw are missing from the other leg. A thumbscrew for adjusting the width of the instrument is outside the leg with the pen point. A cylindrical ridged handle is directly attached to a ring inserted into the legs. That leg is marked: R ECORD . The obj

FOLLOW THE EVIDENCE

Smithsonian InstitutionRecord Bow Compass

Original explanation based on the sources above. Images carry their own reuse terms.