Deux petits théodolites tripodes : - H. BELLIENI in Nancy, second half of the 19th century In gilded, silvered or patinated brass with large compass and eccentric bezel and horizontal level. Signed on the dial. Height: 19 cm. - Bezel length: 21.5 cm - Compass diameter: 13.5 cm. With its silver-plated "projection board for vertical stadia", signed. H.: 10.4 cm. In its walnut case with white wooden display tray, signed BELLIENI (scratches and dents, accessories missing, no key). - ROCHETTE, Paris In partially gilded brass, with large compass and eccentric bezel and horizontal level. Signed. H. 18 cm. Wear and oxidation.