Rosell Sextant

This sextant has an ebony frame and reinforced brass index arm. The ivory scale is graduated every 20 minutes from -5° to +140° and read by vernier with tangent screw to 30 seconds of arc. It belonged to the University of Alabama, and probably dates from the middle decades of the nineteenth century. A trade card in the box reads: "CASA FUNDADA EN 1837 PRECIO FIJO GRAN ESTABLECIMIENTO DE Instrumentos de D. JOSÉ ROSELL BARCELONA Plaza de Palacio, Numero, 13." The instrument bears the inscription "JOSÉ ROSELL BARCELONA."
José Rosell began in business in Barcelona in 1837, offering a wide variety of mathematical, optical, and philosophical instruments. In 1905 the shop was known as Antigua Casa Rosell.
Ref: José Rosell, Prospecto del Nuevo y Grandioso Establecimento de Instrumentos Científicos (Barcelona, n.d.).
Currently not on view
Object Name
date made
19th century
Rosell, Jose
sextant radius: 7 9/16 in; 19.177 cm
box: 12.7 cm x 33 cm x 29.2 cm; 5 in x 13 in x 11 1/2 in
place made
España: Cataluña, Barcelona
ID Number
catalog number
accession number
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Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History, Kenneth E. Behring Center


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