Pencil Library

Lead in Pencils

With recent news and increased concern for the safety of different consumer products such as toys or art products from China, we have received an increase in inquiries regarding the potential for exposure to lead in pencils.

As mentioned on our Pencil Lead page there is no lead in the writing core of a "lead" pencil. The core is made of non-toxic graphitei and does not contain lead.

The other common concern regarding potential sources of lead in pencils is in the lacquer or paint used to finish the pencil.

The HB Graphite Grading Scale

The hardness of the core is often marked on the pencil -- look for a number (such as "2" "2-1/2" or "3"). The higher the number the harder the writing core and the lighter the mark left on the paper. As the pencil core becomes softer (through the use of lower proportions of clay) it leaves a darker mark as it deposits more graphitei material on the paper. Softer pencils will dull faster than harder leads and require more frequent sharpening.

Economics of Pencil Manufacturing

Just as with any other manufactured products the economics of pencil manufacturing are driven by a number of factors.

These cost drivers include:

- cost of raw materials (wood, graphitei, clay, brass, lacquer, etc.)
- cost of parts or other finished components used to assemble the pencil
- cost of transportation and handling of various materials used and of the finished product to the factory
- cost of labor and benefits for the factory workers employees
- cost of energy
- cost of supplies used to maintain eq

Forest Certification

Third party Forest Certificationi is a process by which a collection of concerned groups get together and establish agreements as to standards of forest management and then use an independent company to inspect forests to these standards.

Sustained-Yield Forests

The Story of Pencils Lesson Plan: Activity 5 - What is a Sustained Yield Forest?

Careful sustained-yield management of our forests has enabled the United States to meet our needs for wood and paper, while maintaining the forests for use by future generations.

Let's Make a Pencil Video

See how Incense-cedar pencils are made.


Copyright (c) 1996 Incense Cedari Institute

The Story of Pencils: Technology and Tradition

We can find pencils everywhere: at school, at home, at the office, even on the golf course. Because they are so common we tend to take them for granted.

The Story of Pencils: Technology and Tradition is a celebration of the most useful yet least appreciated writing instrument of all time: the world's only portable, lightweight invention that can draw a line 35 miles long, write an average of 45,000 words, absorb 17 sharpenings and delete its own errors.

Why Pencils Are Yellow

Pencils have been painted yellow ever since the 1890s.
And that bright color isn't just so you can find them on your desk more easily!

During the 1800s, the best graphitei in the world came from China. American pencil makers wanted a special way to tell people that their pencils contained Chinese graphite.

In China, the color yellow is associated with royalty and respect. American pencil manufacturers began painting their pencils bright yellow to communicate this "regal" feeling and association with China.

Famous Pencil Users



The Story of Pencils Lesson Plan: Activity 1 - What are pencils used for?

From authors to presidents to footsoldiers alike, people making history have made their mark with cedar pencils.


Artist and inventor Leonardo da Vinci frequently sketched in pencil.



For More Info...

Following are just a few additional sources of information about pencils, forestry, forest products, and the forest environment:

Books to Look For In Your Public Library:
The Pencil: A History of Design and Circumstance by Henry Petroski Order from Amazon.com
The Colored Pencil by Bet.Borgeson Order from Amazon.com

Shopping cart

There are no products in your shopping cart.

0 ItemsTotal: $0.00
User Navigation