Made in: Australia
Three different eras of the Copperplate 2100 resulting in a slight change in the exterior purple color.
Columbia began producing carbon paper and inked ribbons in 1931, then expanded to pencils in the 1940s under the name Columbia Pencil & Crayon Company. The Australian brand was acquired by Esselte in 1986, which was acquired by Pelikan Artline in 2009, which was acquired by ACCO Brands in 2016. See a bit more history at columbiapencils.com.