Re:Why Pencils Are Yellow (2017)
by blue1 on Thursday November 01, 2018 @06:05AM
(#18352444)
Apparently, several types exist. The high-end ones are the blue/black I was describing (Staedtler Mars Lumograph), while the black/yellow ones (Staedtler Noris) are the most common ones.
The overwhelming majority is black/yellow. Maybe they geo-segment.