The Vitruvian scroll is a pattern used in architectural molding

Molding (decorative)

Molding or moulding is a strip of material with various profiles used to cover transitions between surfaces or for decoration. It is traditionally made from solid milled wood or plaster but may be made from plastic or reformed wood...

. It is also known as the Vitruvian wave, wave scroll, or running dog pattern. The pattern resembles waves in water or a series of parchment scrolls viewed on end. "Vitruvian" refers to the Roman architect Marcus Vitruvius Pollio ("Vitruvius") who wrote the oldest extant book on architecture

Architecture

Architecture is both the process and product of planning, designing and construction. Architectural works, in the material form of buildings, are often perceived as cultural and political symbols and as works of art...

, which describes some of the classical architectural orders.