Whiteboard
Albert Stallion invented whiteboards while working at Alliance in the 1960s. Alliance (now known as PolyVision) produced enameled steel for architectural cladding, but Stallion noted it could also potentially be used as a writing surface. Stallion later left Alliance to form his own whiteboard production company, MagiBoards.
Bristol board
Bristol board (also referred to as Bristol paper or Super white paper) is an uncoated, machine-finished paperboard. It is named after the city of Bristol in the southwest of England as that is where it was first produced. Common sizes include and its bulk thickness is or higher and A4, A3, A2 and A1. Bristol board may be rated by the number of plies it contains or, in Europe, by its grammage of 220 to 250 g/m. It is normally white, but is also made in different colours.