The Tenement - House Committee Maps.
Based off of the work compiled by the Tenement House Committee, and published by Harpers, this double page set of maps looks at the population and makeup of Manhattan's population. The upper map looks at population density, with a strong concentration in the lower East Side. The lower map looks at the nationalities throughout the island, with a strong presence of Germans and Irish, above even the group of citizens labeled as "Natives".
Condition is very good. Image size is approximately 13 x 19 (inches)