Object Details
- Frederick Post Co.
- Description
- This metal instrument has two I-shaped beams, one 13" long and one 7" long. Needle, pencil, and pen points are moved along a beam by rolling wheels at the top of the trammels. The trammels are each marked with the logo for the Frederick Post Company that was in use from 1944 until 1970 and with the word ERA. A cardboard box covered with black imitation leather holds the objects. The box has two empty 2" slots. The end of the box has a red and white Post label with the model number 940. According to a Post catalog, purchasers could also choose beams as long as 26", 38", 50", 62", 74", 86", and 100".
- Reference: Frederick W. Post Company, Dependable Drawing Materials, 19th ed. (Chicago, 1950), 61.
- Location
- Currently not on view
- Credit Line
- Gift of Alice W. Smith
- 1944-1970
- ID Number
- 1990.0317.01
- accession number
- 1990.0317
- catalog number
- 1990.0317.01
- Object Name
- beam compass
- Physical Description
- steel (overall material)
- cardboard (overall material)
- aluminum or aluminum alloy (overall material)
- Measurements
- overall: 33.6 cm x 7.5 cm x 2.1 cm; 13 7/32 in x 2 15/16 in x 13/16 in
- place made
- United States: Illinois, Chicago
- See more items in
- Medicine and Science: Mathematics
- Science & Mathematics
- Dividers and Compasses
- National Museum of American History
- Subject
- Mathematics
- Drawing Instruments
- Record ID
- nmah_904410
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a7-3f61-704b-e053-15f76fa0b4fa
