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Prestacon was a DIY type constructional system similar to Juneero. It was made in the UK in the late 1940s.

Manufacturer / Distributor

Sydney S. Bird & Son Ltd., Cambridge Arterial Road, Enfield, Middlesex,UK
Later stated to be 'A Cyclone Product'
Sole Concessionaire: L. Rees & Co/ Ltd., 31-35 Wilson Street, London EC2, UK

Info from the Metal Constructional Systems Database for PRESTACON

System Type
DIY type
United Kingdom
1947 to 1950
Aluminium (Alloy)
1/8W (probably)
Boss Type
double-tapped (see comment *1)
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
Hole Pitch (Spacing) (mm)
12.7 (hole pitch, only for holes in wheels or discs.)
Diameter of holes in Strips(mm)
3 (see comment *2)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
Types of Nuts and Bolts
Nuts: square
Bolts: round (slotted)
(see comment *3)
Material/Finish of Nuts and Bolts
Steel with a Steel finish
Size of the Nuts across Flats (mm)
6.4(see comment *4)
Bolt diameter (mm)
4.8(see comment *5)

Tool, Strip, Angle Girder, Lattice Girders, & wide range of Gears etc. PRESTACON on Tyres. *1 Road Wheel single tapped. *2 Also square punch. *3 Hex Nuts also shown. *4*5 6.6 & 5.5 also possible.

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

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There are currently no manuals, leaflets or photos etc. available for downloading. If you can supply any, please get in contact with me.