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Constructor (0) Construction Sets

Constructor(0) was an unusual construction system based upon the rhombus shaped part. It was produced in France in the mid to late 1910s. See Constructor(1) for the later development of this system.

Manufacturer / Distributor

Messrs Frégonara & Mangard, Lyon, France

Info from the Metal Constructional Systems Database for CONSTRUCTOR [0]

System Type
Hole pitch <12.7mm
circa 1917 to circa 1919
Boss Type
no boss
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
26 (see comment *1)
Hole Pitch (Spacing) (mm)
Variable (see comment *2)
Diameter of holes in Strips(mm)
4.3 (see comment *3)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
--- (see comment *4)
Types of Nuts and Bolts
Nuts: hexagonal
Bolts: cheese (slotted)
Material/Finish of Nuts and Bolts
Steel with a Steel finish
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

Lid has boy with 4 models including Tower, Bridge & Crane. 1st version of unusual system based on a Lozenge part. *1Including 10 of wood or card. *215mm for the Lozenge & 11mm for the Strip. *34.2-5mm. *4Winding Drum axle, no others.

The MCS document for this system is shown below. It can also be downloaded to your computer if desired here

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The report can be zoomed into, made full screen or downloaded as a pdf document by using the controls provided

Below there are manuals/leafets and photos which can be downloaded by clicking on the appropriate image.

The Constructor(0) manual
(Added 14/11/2018)

The French patent for the Constructor(0) system
(Added 14/11/2018)

The Swiss patent for the Constructor(0) system
(Added 14/11/2018)

Various photos of the Constructor(0) construction system
(Added 14/11/2018)