Ildefons Cerdà: Original design of the project of extension of the city and its harbour. (Eixample). 1859.

Ildefons Cerdà: Original design of the project of extension of the city and its harbour. (Eixample). 1859.
Located in Real academia de Bellas Artes de Sant Fernando, Madrid.
Source: http://www.bcncultura.cat/activitats/cerda-i-la-barcelona-del-futur-lexposicio-del-cccb/