Unboxing the world's most prestigious CHALK - YouTube
Hagoromo Fulltouch: The Legendary Chalk Hoarded by Mathematiciansk | HowStuffWorks
A Ride on the Assembly Line With the World's Most Famous Chalk - The New York Times
Sandeep Verma (स्वर) on X: "You feel the pressure to teach really well when your department Head casually gifts you the best and most legendary chalk ever!! Oh, the joy of pedagogy!!