This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Industrial and political map of Pennsylvania exhibiting the population the principal resources of each county and the valuation of property the several Congressional districts and the vote for NYPL. Industrial and political map of Pennsylvania exhibiting the population the principal resources of each county and the valuation of