The Mitsubishi Pencil Company's Kuru Toga model is a couple of years old and features a gear inside that rotates the pencil lead every time it's put to paper, continually keeping a sharp, centered point on it:
An amusing piece of belated overengineering--I could've really used one of these back in the days when we actually did hand draftings. This is kind of like making a carbon-fiber T-square.
Create a Core77 Account
Already have an account? Sign In
By creating a Core77 account you confirm that you accept the Terms of Use
Please enter your email and we will send an email to reset your password.
Comments
This was slightly after the days of clay tablets, but coincident with papyrus scrolls.