A linograph, also known as a French curve or drafting template, is a set of geometric curves and shapes used in technical drawing and drafting. It is primarily used in architectural, engineering, and artistic applications for creating smooth and precise curves.

A Linograph Colour Mixing Palette is a tool used by artists, particularly in the field of painting, to mix and blend different colors together. It is typically a flat surface, often made of plastic or ceramic, with multiple wells or compartments designed to hold small amounts of paint.