When I was growing up some time ago, application of multiple colors to a piece of paper was performed by hand.
- If young children wanted to create a crayon picture with four colors, they would grab four crayons.
- If someone was painting, they would get four colors of paint.
- But if someone were practicing penmanship, they would only need a single pen.
Yes, a single pen that wrote in red, green, blue, and black.
The BIC 4-Color Pen.
“The BIC 4-Color Pen was ingeniously crafted to allow the user to switch between ink colors without the need to swap pens. This was made possible due to a singular mechanism, employing precision springs, that helped in selecting the color of choice. Constructed from durable technical plastics, the pen could endure countless color changes.”
And the clicking sound and feel was enjoyable.
(Picture source: https://us.bic.com/en_us/bic-4-color-original-retractable-ball-pen-assorted-12-pack.html )
Bredemarket 