Plate of inside callipers — Engraving from the Peugeot Frères catalog (1885)

This reproduction of a technical engraving highlights five types of inside callipers from the catalog of the Sons of Peugeot Frères of 1885. Each measuring instrument is represented with documentary clarity, illustrating design variations such as quarter-circle models, hand models, or those marked with the lion hallmark. The plate emphasizes the precise geometry of the tools and the finesse of the line characteristic of 19th-century industrial illustrations.

Originally intended for artisans and mechanics, this plate testifies to the encyclopedic intention of the Peugeot brand at the end of the last century. The iconography reveals a quest for absolute precision in the representation of adjustment screws and joints, characteristics of precision tools of the era. The graphic style is sober, functional, and reflects the spirit of technological innovation that animated French manufactures during this period of industrial growth.

Intended for collection or the decoration of an office or workshop, this illustration offers a fascinating reading of historical precision tooling. Its documentary value makes it an ideal subject of contemplation for those who appreciate technical rigor and the elegance of ancient layouts. It allows one to appreciate the intrinsic beauty of scientific measuring instruments through a careful reproduction.