# Studies of central plan buildings [View the canonical artwork record]() ## Artwork - Artist: [LEONARDO da Vinci]() - Date: 1451-1500 - Technique: Pen and ink on paper, 230 x 160 mm ## Commentary Paris Codex B is the earliest of Leonardo's bound manuscripts, with the Codex Trivulzianus. It contains drawings and notes relating to a range of subjects, the most famous of which concern mechanical inventions for flight, such as the so-called helicopter, a submarine, and architectural studies with designs for churches based on centralised plans. There are also designs for engines of war with which Leonardo had hoped to win Ludovico Sforza's favour. Originally together with the Codex Ashburnham I, this notebook comprised of 50 double folios or 100 pages with an additional five loose sheets. The original binding now contains 84 folios. ## Related artworks - [Adoration of the Magi]() - [Allegory with wolf and eagle]() - [Anatomical studies \(larynx and leg\)]() - [Anatomical studies of a male shoulder]() - [Anatomical studies of the shoulder]() - [Anatomical studies]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() - [Annunciation \(detail\)]() ## Attribution [Web Gallery of Art]()