Object Details
- Description
- This wooden rectangular rule is reported to be a Persian drah, or pic, and said to have been used for measuring dry goods. It is divided on two sides by roughly cut arrows and vertical lines. One side has Persian characters inside circles at both ends. On that side, the divisions are at: 4.5, 8.8*, 13.2, 17.4*, 21.5, 25.9, 30.0, 34.3*, 38.5, 42.7, 47.1, 51.2*, 55.5, 59.7*, and 64.1 cm. Divisions with an * are marked with an arrow rather than a line on the rule. These divisions are spaced apart 1 centimeter further than the divisions on another Persian drah, 1979.0991.01. On the other side, all of the divisions are vertical lines, at: 11.7, 23.0, 34.2, 45.5, and 57.0 cm.
- In 1892 the U.S. Department of State transferred this object to the Smithsonian.
- Location
- Currently not on view
- Credit Line
- Transfer from the U.S. Department of State
- 19th century
- ID Number
- 1979.0991.02
- accession number
- 1979.0991
- catalog number
- 166898
- Object Name
- rule
- scale rule
- Physical Description
- iron (overall material)
- Measurements
- overall: 1.5 cm x 68.2 cm x .3 cm; 19/32 in x 26 27/32 in x 1/8 in
- See more items in
- Medicine and Science: Mathematics
- Science & Mathematics
- Scale Rules
- Measuring & Mapping
- National Museum of American History
- Subject
- Mathematics
- Record ID
- nmah_904681
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a7-5627-704b-e053-15f76fa0b4fa
