Leonardo da Vinci (1452-1519) as natural scientist and engineer was a typical empiricist. He pursued of understanding about individual appearences in nature. In practical application of the found systematics Leonardo constructed an astonishing number of tools for a widespread field of applications and thereby was far beyond his era. He combined the exploration of nature and of anthropology with inventions on mechanics.

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Same as Leonardo da Vinci or Henry Ford late Walter Krohn was ahead of his time. He was not developing at so many fields like da Vinci, but similar combined the aspects of human and lifeworld. The jump in quality and speed by change from manual work to assembly line work is comparable to the jump from manual demining to stand alone mechanical demining.
The proverbial to square the circle as logical challenge and the flexibility in his ideal physical perfection, which is endangered by mines, allegorize our philosophy.

• Blue filled circles = symbolic colour of planet Earth
• Gold-yellow square = symbolic colour of technique and of the machines
• Green intersection of cirle and square = symbolic colour of life. Technique and planet are the purviews combined and used by humans.
• Human, stylized millhouse with mill and explosion are coloured realistically. They have a border and stand for tangible bodies, different to the symbols of blue circle, gold-yellow square and green intersection, that are not bordered.

italian 1 Euro backside

The Universal-genie Leonardo da Vinci had written the following thought:

We have analysed our experience in soil-work in forest and fields and transferred it to one otther subject, the demining. Experience and rational analysis is transformed in mechanics.

Not only about the result of our development we take pride a little in, but also about the complaince with the conviction of a worldwide known and recognized Universal-genie.