The only sector compass forming a caliber made by Johannes Maccarius dated 1691 known

The only sector compass forming a caliber made by Johannes Maccarius dated 1691 known



Length of 25 cm x width of 9 cm x thickness of 2.4 cm.




Johannes Maccarius

Country of manufacture


Category: Scientific


Exceptional sector compass forming a caliber by Johannes Maccarius.

This brass compass/caliper is made up of two arched legs ending in steel spikes.

Note that the points of this compass are very special because they have a double function: that of a classic dry-point compass and that of a caliber with its very small points arranged perpendicularly.

The upper part of the compass, octagonal in shape, ends in a ball head.

At the base of this part, there is an arc (or sector) riveted to one of the legs while the other is pierced with a rectangular hole allowing the passage of the arc which ends in a head in the shape of a truncated pyramid. The four sides of the arch are engraved in different scales.

This type of compass/caliber, of a remarkable rarity, was used not only for architectural work but also for military needs.

With its arched legs, it combines the function of a classic dry-point compass, but very elaborate here, since the opening is controlled very precisely by the graduations of the arc, with that of a caliber that allows very precise measurement. precisely angles, lengths but also the diameter of different objects made of various materials and in particular the caliber of the guns and the weight of the balls.

Signature: “Ioannes Maccari Mir[andolanus] Fecit 1691” is engraved on each side of the arc, “Ioannes Maccari” at one end and “Mir[andolanus] Fecit 1691” at the other end.

Condition: Exceptional. This compass/caliber has been very well preserved and is in perfect working order.

Provenance : Private collection, Europe / Collection Delalande, Paris.

Dimensions: length of 25 cm x width of 9 cm x thickness of 2.4 cm.

Italy, Modena, 1691.

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Galerie Delalande Paris

After 37 years in Le Louvre des Antiquaires, the Delalande gallery moved early June 2015 to 35 rue de Lille, 75007 Paris, on the other side of the Seine River in the well known antic shops area "le Carré Rive Gauche".
Our main specialties are, since 1976, Marine and Scientific instruments, Tobacco and Opium objects, Curiosities and Great Canes.
We participate to international antique fairs (TEFAF Maastricht) and are unique partner of the French Maritime Museum.
Eric Delalande is also Administrator of the French Experts National Company (C.N.E.).
Please visit also our two websites, which are frequently updated: (French) and (English). ----------------------------

La Galerie Delalande s'est installée en juin 2015 au 35 rue de Lille (75007 Paris), au coeur de la capitale dans le "Carré Rive Gauche", après 37 années de présence au Louvre des Antiquaires.
Nous nous sommes orientés, depuis 1976, vers plusieurs spécialités : Marine et Sciences, Objets du tabac et de l'Opium, Cannes de collection et Curiosités.
Nous participons à des salons d'envergure internationale (TEFAF Maastricht) et sommes partenaires exclusifs du Musée National de la Marine.
Eric Delalande est également Administrateur de la Compagnie Nationale des Experts (C.N.E.).
N'hésitez pas à visiter nos deux sites internet fréquemment mis à jour : (Français) and (Anglais).

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