A Stanley puzzle
The subject of this post is yet another ebay purchase, this time made purely on the basis of a name on a box. Described as geometrical models for teaching, the…
Mechanical Pencil Month – Day 4: The Eversharp 4 Square
Day the fourth be with you! On that note, it's hard to think of a more quadratic pencil than the Eversharp 4 Square. This was a mechanical pencil of square…