'Other' Constructional and Allied Systems Info & Downloads
Eureka! (2) Construction Sets
Eureka! (2) was a Meccano-like construction systems with 15.7mm hole spacing. It was made in Spain. Dates currently unknown.
Brief details - Distance between holes 15.70 mm., diameter of holes 3.91 mm., diameter of shafts 3.61 mm., screw M3.5. It has no motor. Number of different parts 79.
Manufacturer / Distributor
An unknown company from Spain
Info from the Metal Constructional Systems Database for EUREKA! 
Hole pitch >12.7mm
Sets 1-3 from Celsa (Valencia). Box label has boy, small boy, small girl around Crane on floor. Parts all nickel, or red, blue, green, black, yellow. They are M-principle but many of a different character.
Below there are manuals/leaflets which can be downloaded by clicking on the appropriate image.
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