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2. Pencil case - Wikipedia

   en.wikipedia.org/wiki/Pencil_case

   Some pencil cases have a hard and rigid shell encasing the pens inside, while others use a softer material such as plastic, leather or cotton. Soft versions are typically fastened with a zipper. Early pencil cases were round or cylindrical in shape. Some early pencil cases were decorated with jasper (one from 1860) or platinum (from 1874). [1]

3. Pin tumbler lock - Wikipedia

   en.wikipedia.org/wiki/Pin_tumbler_lock

   The first known example of a tumbler lock was found in the ruins of the Palace of Khorsabad built by king Sargon II (721–705 BC.) in Iraq. [1] Basic principles of the pin tumbler lock may date as far back as 2000 BC in Egypt; the lock consisted of a wooden post affixed to the door and a horizontal bolt that slid into the post.

4. Laurentien (art supplies) - Wikipedia

   en.wikipedia.org/wiki/Laurentien_(art_supplies)

   Laurentien brand coloured pencils are also known as "pencil crayons" in Canada. [2] They were available in packages of differing sizes. Each coloured pencil is painted in a colour matching the lead, and labelled in white (Cotton White has yellow lettering) with both the name of the colour and a number assigned to each colour. 1: Deep Yellow

5. Cylinder - Wikipedia

   en.wikipedia.org/wiki/Cylinder

   The bare term cylinder often refers to a solid cylinder with circular ends perpendicular to the axis, that is, a right circular cylinder, as shown in the figure. The cylindrical surface without the ends is called an open cylinder. The formulae for the surface area and the volume of a right circular cylinder have been known from early antiquity.

6. Pencil - Wikipedia

   en.wikipedia.org/wiki/Pencil

   The most common pencil casing is thin wood, usually hexagonal in section, but sometimes cylindrical or triangular, permanently bonded to the core. Casings may be of other materials, such as plastic or paper. To use the pencil, the casing must be carved or peeled off to expose the working end of the core as a sharp point.

7. Sampson Mordan - Wikipedia

   en.wikipedia.org/wiki/Sampson_Mordan

   Silver mechanical pencil Catalogue from 1898 Sampson Mordan (c. 1790 – 9 April 1843) was a British silversmith and a co-inventor of the first patented mechanical pencil . During his youth, he was an apprentice of the inventor and locksmith Joseph Bramah , who patented the first elastic ink reservoir for a fountain pen .