Object Details
- distributor
- Eugene Dietzgen Company
- Description
- This 2-1/4" German silver and steel metal drawing instrument consists of a teardrop-shaped plate to which is attached a mechanism that is supposed to hold a larger serrated wheel and a smaller pattern wheel. The mechanism links the wheels to a bar that holds a pen point. When the larger wheel is rolled along the edge of a T-square or straight edge, the pen point bounces up and down to make a dotted line that formed part of an engineering drawing.
- The larger wheel (5/8" diameter) is marked with one of the trademarks for the Eugene Dietzgen Co., the superimposed letters E and D inside a circle formed by the letters C and o. The six smaller wheels (9/16" diameter) also have this trademark and are numbered from 1 to 6, representing six possible dotting patterns. All the wheels are made of brass. The instrument also has the trademark and is marked: EXCELLO. The arm holding the pen point is marked: DIETZGEN (/) GERMANY. The instrument is in a rectangular wooden bar-lock case covered with black leather and lined with green velvet. The top of the case is marked: DIETZGEN (/) “EXCELLO”. The top is also marked: GERMANY.
- This dotting instrument was advertised as model 932S in the 1926 Dietzgen catalog and sold for $5.15. It was part of the Excello product line, Dietzgen's second-highest level of drawing instruments. This object was used in the physics department at Kenyon College. Compare to 1987.0788.02.
- Reference: Catalog of Eugene Dietzgen Co., 12th ed. (Chicago, 1926), 57–59, 84.
- Location
- Currently not on view
- Credit Line
- Gift of Kenyon College Department of Physics
- ca 1926
- ID Number
- 1982.0147.01
- accession number
- 1982.0147
- catalog number
- 1982.0147.01
- Object Name
- pen, dotting
- Physical Description
- german silver (overall material)
- brass (overall material)
- wood (overall material)
- leather (overall material)
- fabric (overall material)
- Measurements
- overall: 9.9 cm x 8 cm x 1.5 cm; 3 29/32 in x 3 5/32 in x 19/32 in
- place made
- Germany
- place distributed
- United States: Illinois, Chicago
- See more items in
- Medicine and Science: Mathematics
- Pens and Pencils
- Science & Mathematics
- National Museum of American History
- Subject
- Mathematics
- Drafting, Engineering
- Drawing Instruments
- Record ID
- nmah_904301
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a7-5e2b-704b-e053-15f76fa0b4fa
