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MWK Construction Sets

MWK was a Meccano-like system with several unusual shaped plates. It was made in Germany, in the late 1940s.

Manufacturer / Distributor

MWK - MetallWerkstätten Kronach, Bavaria, Germany

Info from the Metal Constructional Systems Database for MWK

System Type
Hole pitch <12.7mm
Former East Germany
after World War Two to circa 1950 (some significant doubt)
Aluminium (Alloy) / Steel (see comment *1)
Boss Type
no boss
Boss Thread
Diametrical Pitch of Gears
(see comment *2)
No. of Parts in System
36 (approximately)
Hole Pitch (Spacing) (mm)
12.1 (see comment *3)
Diameter of holes in Strips(mm)
4.1 (see comment *4)
Diameter of the Bore in Bosses(mm)
(see comment *5)
Diameter of Axle Rods(mm)
(Screwed Rods or Bolts are used as axles.)
Types of Nuts and Bolts
Nuts: hexagonal
Bolts: tapered cheese (slotted)
Material/Finish of Nuts and Bolts
(see comment *6)
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

Pts including Perforated Plate(s) 3x7,11 holes & 7x11,25h; Trapezoidal Plate(s) with 3,5,7 holes rows. Lid has Bridge spanning the globe. *1May be aluminium or dark steel or a mix. *22 coarse-toothed Gears. *3*4*512.5, 4.3-4.8, 4.5 also reported. *6?B Nuts & ?F.

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

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

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

Photos of a MWK set and part details.
(Added 23/03/2021)