Six measuring instruments. Central Europe, 19th century

Set of six measuring instruments. Central Europe, 19th century.
Consisting of a slide rule, a parallel ruler, a caliper, a curved template, a square and a cylindrical ruler.
Wood, brass, leather and plastic.
Exhibits wear consistent with age and use and some flaws.
Measurements: 6 x 45 cm (larger).

This set represents a piece of technical heritage, not only for its quality of manufacture and completeness, but also as a material testimony of the rise of technical drawing as a fundamental discipline in engineering, architecture and technical education of the time.