We just added an early pocket map of Washington DC to our inventory. Pocket maps, sometimes called case maps, are separately-issued, folding maps attached or slid into a hard cover. They first appeared in the United States in the 1820s and 30s, partly prompted by the burgeoning development of railways. The early pocket maps emphasize new railroad lines, canals, and road distances, sometimes with charts of calculated travel times to and from key cities. During the Civil War, pocket maps had significant military use due to portability and lower production costs. Later pocket maps were used like advertisements, produced by entrepreneurial business owners and travel companies.
Hope you enjoy!