9B-9H

2018

Pencils

70 x 6mm

9B-9H
Image Text

2018, Pencils

70 x 6mm

9B-9H looks at the etymology of the classification of the everyday pencil. The gradation reflects the proportion of clay and graphite in the lead, reflecting its hardness or blackness.

|

9B 8B 7B 6B 5B 4B 3B 2B B HB H 2H 3H 4H 5H 6H 7H 8H 9H

|