Frutiger (Roissy) Typeface - 1975
Adrian Frutiger
www.linotype.com

Zöllner Font - 2006
Johanna Lewengard & Martin Frostner
www.martinfrostner.se

"Zöllner Font, is exclusively made, inspired by the classic optical
illusion by astrophysicist Johann Karl Friedrich Zöllner."