This is the north half of a detailed plan of Liverpool published in 1890. It is incredibly detailed, showing every road name, paths within the parks, and even individual buildings in some streets (where those buildings were big enough).
There's also an index to road names down two sides, making it easy to look up a place of interest.
It's a partner to a South Sheet, also available on Historic Liverpool. There are also concentric circles showing distances from the Town Hall, each one quarter of a mile apart.
It shows the densely packed city layout at the height of the Industrial Revolution, when Liverpool was experiencing unparalleled levels of immigration from other parts of Britain and beyond the country's borders. Details of large thoroughfares such as Scotland Road and Erskine Street can be seen in their pre-war state, before extensive redevelopment changed the face of Liverpool forever.
Because of the high level of detail, the map only covers an area from Crosshall Street to Kirkdale Station, but this is one of the most important areas of Liverpool at this time in its history.