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Plastic tape measure (cm)
Plastic tape measure (cm)
Manually reeled tape measure
Manually reeled tape measure
Self-retracting metal tape measure (US customary)
Self-retracting metal tape measure (US customary)
Measuring tape capable of measuring down to 1⁄32 in (0.794 mm)
Measuring tape capable of measuring down to 1⁄32 in (0.794 mm)
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A variety of rulers
A variety of rulers
Retractable flexible rule or tape measure
Retractable flexible rule or tape measure
A closeup of a steel ruler
A closeup of a steel ruler
Bronze ruler. Han dynasty, 206 BC – 220 AD. Excavated in Zichang County, China
Bronze ruler. Han dynasty, 206 BC – 220 AD. Excavated in Zichang County, China