”We actually don't like any of your proposals. Could you trace this sketch my friend made? I really like that one.
Annonymous ClientClient's response to the free logo proposals

The client asked Niels to make a logo for a new Boulder center in Amsterdam. One of the requests was to somehow visualize both the aspect of climbing and the location, which used to be a laboratory. This logo was one of the many proposals that combined both the climbing and laboratory elements.
Black
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White
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