Queen Transit

Queen introduced transit instruments of this form in the late 1880s, and kept them in production for about a decade. The "Queen & Co. Makers. Philada 5420" signature on this example was introduced in 1896.
The horizontal circle is graduated clockwise and counterclockwise, and read by opposite verniers to one minute. The vertical arc covers 150 degrees, and is read by vernier to one minute. The telescope has stadia wires for distance determination, and a clamp and tangent screw to the axis.
Ref: James W. Queen & Co., Catalogue of Mathematical and Engineering Instruments and Materials (Philadelphia, 1887), pp. 143-144.
Currently not on view
Object Name
Queen and Company
overall: 13 in; 33.02 cm
horizontal circle: 6 1/2 in; 16.51 cm
vertical arc: 6 in; 15.24 cm
needle: 4 7/8 in; 12.3825 cm
telescope: 11 in; 27.94 cm
hanging level: 6 in; 15.24 cm
ID Number
accession number
catalog number
Measuring & Mapping
Surveying and Geodesy
See more items in
Medicine and Science: Physical Sciences
Surveying and Geodesy
Data Source
National Museum of American History, Kenneth E. Behring Center
Queen & Co., Inc.. Catalogue of Mathematical and Engineering Instruments and Materials

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Selected comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about the history, rarity, or value of your personal artifacts.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Enter the characters shown in the image.