"Surveyor's Square"
Signed "Boucart Constructeur | Quai de l'Horloge, 35 | Paris". 19th century. Brass and steel, in its wooden case (walnut). Cylindrical set square, with slots, signed Boucart*, optician manufacturer of precision and surveying instruments, active, Quai de l'Horloge at n° 35, between 1882 and after 1900.
Good condition, in its original shaped case, fitted with a brass handle for carrying.
*Marcelin & Fromanger, Dictionnaire des fabricants français d'instruments de mesure..., 2nd edition, 2021, p. 27.
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