Focusing on London, the paper discusses the interaction between theoretical, descriptive and quasi-historical writing about cities, a growing capacity to visualise city landscape and activities, and forms of graphic representation that drew on those ideas. Reading this interplay as a political space, the paper explores the structure, content and purposes of the ‘London Collection’ of national laws, pseudo-laws and city customs put together in London at about the time of Magna Carta. Though no more than a preliminary investigation, the exercise reveals the extent to which London interests, especially with regard to the politics of international trade, the ‘law of London’, earlier episodes of communal activism and a sense of London's historic destiny within that of the nation pervade the collection as a whole. This casts some doubt on the supposed antiquity of some of the London laws in the collection, which may well have been adjusted for the occasion.